WO2009110653A1 - Borne de contact électrique élastique soudable - Google Patents

Borne de contact électrique élastique soudable Download PDF

Info

Publication number
WO2009110653A1
WO2009110653A1 PCT/KR2008/002122 KR2008002122W WO2009110653A1 WO 2009110653 A1 WO2009110653 A1 WO 2009110653A1 KR 2008002122 W KR2008002122 W KR 2008002122W WO 2009110653 A1 WO2009110653 A1 WO 2009110653A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating
electric contact
contact terminal
foam rubber
coating layer
Prior art date
Application number
PCT/KR2008/002122
Other languages
English (en)
Inventor
Sun-Ki Kim
Original Assignee
Joinset 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39771949&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009110653(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Joinset Co., Ltd filed Critical Joinset Co., Ltd
Publication of WO2009110653A1 publication Critical patent/WO2009110653A1/fr

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
    • H05K9/0009—Casings with provisions to reduce EMI leakage through the joining parts
    • 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
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/046—Surface mounting
    • H05K13/0465—Surface mounting by soldering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2414—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means conductive elastomers

Definitions

  • the present invention relates to an electric contact terminal, and more particularly, to a reflow-solderable elastic electric contact terminal having one side fixed to a printed circuit board (PCB) and another side elastically connected to an object such that the object is electrically and mechanically connected to the PCB.
  • PCB printed circuit board
  • reflow-solderable elastic electric contact terminals must have high electrical conductivity and high elastic resilience and must be tolerant to a reflow- soldering temperature.
  • reflow-solderable elastic electric contact terminals are formed of a metal.
  • beryllium copper is widely used for the elastic electric contact terminals because it has high elastic resilience and high electrical conductivity.
  • a beryllium copper sheet having a thickness of less than about 0.3 mm and a predetermined width is punched into a predetermined shape using a press die and then the punched beryllium copper sheet is heat-treated to form the electric contact terminal having an improved elastic resilience. Disclosure of Invention Technical Problem
  • the electric contact terminals formed of the metal sheet cannot provide high elasticity at less than a predetermined thickness because of metal characteristics or structures.
  • the metal sheet must be bent in a predetermined shape. Since the thickness of the electric contact terminal is mostly determined by the bent thickness, the electric contact terminal cannot provide high elasticity at less than a predetermined thickness.
  • one press die can form products having an identical shape, additional press dies are needed to form products having different shapes.
  • it is easy to cause a malfunction because the light electric contact terminal formed of the metal sheet can be easily moved by the wind supplied during a surface mounting process.
  • an electrically conductive gasket material having a compression hole and an electrically conductive support layer having at least one crimp feature which is disposed on a bottom surface of the electrically conductive gasket material are provided, resulting in decreasing productivity of an electromagnetic interference (EMI) gasket assembly. That is, after the electrically conductive gasket material is manufactured, the at least one crimp feature of the separately manufactured electrically conductive support layer penetrates the compression hole of the electrically conductive gasket material and then the penetrated crimp feature is bent. This is disadvantageous for the manufacturing process.
  • the compression hole has a size smaller than that of the EMI gasket assembly.
  • a size of the electrically conductive support layer is limited thereto, and thus, the electrically conductive gasket material is not rigidly adhered to the electrically conductive support layer. That is, when the EMI gasket assembly is drawn in an upper direction, the electrically conductive gasket material is easily separated from the electrically conductive support layer.
  • An object of the present invention is to provide a solderable elastic electric contact terminal that has good elasticity, good electrical conductivity, low manufacturing costs, and improved production efficiency.
  • Another object of the present invention is to provide an elastic electric contact terminal that can be easily surface-mounted using a vacuum pick-up method and reflow-soldered.
  • a solderable elastic electric contact terminal of the present invention can have good elasticity, good electrical conductivity, low manufacturing costs, and improved production efficiency.
  • a solderable elastic electric contact terminal of the present invention can be easily surface-mounted using a vacuum pick-up method and reflow-soldered.
  • FIG. 1 is a perspective view of an electric contact terminal 100 according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of an electric contact terminal 110 according to another embodiment of the present invention. Best Mode for Carrying Out the Invention
  • a solderable elastic electric contact terminal including: an insulating elastic core including a non-foam rubber having a tube shape; an insulating non-foam rubber coating layer adhered to the insulating elastic core such that the insulating non-foam rubber coating layer encloses the insulating elastic core; and a heat resistant polymer film having one side adhered to the insulating non-foam rubber coating layer such that the heat resistant polymer film encloses the insulating non-foam rubber coating layer, and another side on which a metal layer is integrally formed.
  • a solderable elastic electric contact terminal including: an insulating elastic core including a non- foam rubber having a tube shape; a metal brace on an outer surface of a bottom surface of the insulating elastic core; an insulating non-foam rubber coating layer adhered to the metal brace and the insulating elastic core such that the insulating non-foam rubber coating layer enclose a portion of the metal brace and the insulating elastic core; and a heat resistant polymer film having one side adhered to the insulating non-foam rubber coating layer such that the heat resistant polymer film encloses the insulating non-foam rubber coating layer, and another side on which a metal layer is integrally formed, wherein both ends of the heat resistant polymer film are spaced apart a predetermined distance from each other such that solder cream is in contact with the metal brace.
  • the insulating non-foam rubber coating layer may be formed by vulcanization of a liquid silicon rubber between the insulating elastic core and the heat resistant polymer film.
  • a surface of the metal layer may be coated with tin so as to prevent corrosion of the metal layer and facilitate soldering, and the heat resistant polymer film may include polyimide.
  • the elastic electric contact terminal may be surface- mounted using a vacuum pick-up and reflow-soldered.
  • Mode for the Invention [21] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
  • FIG. 1 is a perspective view of an electric contact terminal 100 according to an embodiment of the present invention.
  • an elastic core 10 disposed at the most inside of the electric contact terminal includes a tube or an insulating non-foam rubber having a tube shape.
  • the elastic core 10 has a rectangular shape in section, but the present invention is not limited thereto.
  • the elastic core 10 may be extruded into various shapes in section.
  • thickness of both side walls in a section of the elastic core 10 may be thinner than that of upper and lower wall to provide a good elasticity.
  • An insulating non-foam rubber coating layer 20 is disposed between the elastic core
  • a metal layer 40 is integrally formed on an outer surface of the heat resistant polymer film 30.
  • the heat resistant polymer film 30 may be a single-sided flexible copper clad laminate (FCCL). Tin may be coated on an outer surface of the metal layer 40.
  • the metal layer 40 may have a thickness ranging from about 0.002 mm to about 0.01 mm, considering flexibility, solerability, and adhesive property.
  • a metal etching process may be performed to remove a portion of the metal layer 40 disposed on the outer surface of the heat resistant polymer film 30, thereby improving the flexibility of the electric contact terminal 100.
  • the heat resistant polymer film 30 may be formed of a polyimide (PI) film having good heat resistant properties and has a thickness ranging from about 0.01 mm to about 0.05 mm, considering the flexibility and mechanical strength.
  • PI polyimide
  • a liquid silicon rubber vulcanized by moisture or heat is coated to a thickness of about from 0.02 mm to about 0.5 mm to form a coating layer.
  • the elastic core 10 manufactured in a roll shape using an extrusion process is placed on the coating layer and enclosed using a jig with a predetermined shape.
  • manufacturing costs of the electric contact terminal 100 are low because the used materials are small in number, and elasticity of the electric contact terminal 100 can be adjusted by adjusting a diameter of an inner through hole without consideration of a foaming rate. In addition, small size products can be easily manufactured.
  • the coating layer of the liquid silicon rubber When the thickness of the coating layer of the liquid silicon rubber is too small, the adhesive force between the elastic core 10 and the heat resistant polymer film 30 is lowered. On the contrary, when the thickness of the coating layer is too large, it takes a long time to vulcanize the liquid silicon rubber. In addition, when the coating layer is formed of the liquid silicon rubber vulcanized by moisture, the coating layer may be formed under nitrogen atmosphere or vacuum.
  • the heat resistant polymer film 30 enclosing the elastic core 10 is placed on a die having a size similar to that of the elastic core 10, and the liquid silicon rubber coating layer disposed therebetween is vulcanized.
  • the liquid silicon rubber layer is changed into the insulating non-foam rubber coating layer 20.
  • the insulating non-foam rubber coating layer 20 adheres the elastic core 10 to the heat resistant polymer film 30. That is, after the liquid silicon coating layer is vulcanized inside the die, it is changed into the insulating non-foam rubber coating layer 20 that serves as an adhesive to adhere the elastic core 10 to the heat resistant polymer film 30 and has elasticity.
  • the liquid silicon rubber is vulcanized, it is not again melt by heat. Therefore, the original adhesion performance can be maintained when the electric contact terminal 100 is soldered.
  • a working speed can be enhanced by maintaining a die temperature at 6O 0 C and a relative humidity at 60% so as to increase a vulcanization speed of the liquid silicon rubber disposed inside the die.
  • the electric contact terminal 100 is manufactured using the heat resistant polymer film 30 having the metal layer 40 formed on the outer surface. Therefore, the electric contact terminal 100 is manufactured with a length of less than about 1 m and then is cut to a required length ranging from about 3 mm to about 30 mm. Hence, the vulcanization time can be reduced by using the electric contact terminal 100 cut to the required length before the liquid silicon rubber is completely vulcanized. In addition, the working time can be reduced by using a liquid silicon rubber vulcanized by heat, instead of the liquid silicon rubber vulcanized by moisture.
  • the electric contact terminal 100 Since the outer surface of the electric contact terminal 100 is formed of the metal layer 40, the electric contact terminal 100 has good electrical conductivity of less than about 0.01 and is well soldered.
  • the heat resistant polymer film 30 is formed of polyimide and the elastic core 10 and the insulating non-foam rubber coating layer 20 are formed of silicon rubber, their original performance can be maintained during a soldering process. Also, the elastic core 10 and the insulating non- foam rubber coating layer 20 have excellent elastic resilience because they are formed of the silicon rubber.
  • a bottom surface of the heat resistant polymer film 30 may be parallel to a printed circuit board (PCB) so as to increase a contact area therebetween.
  • a top surface of the heat resistant polymer film 30 is also parallel to the PCB so as to allow a reflow soldering in a surface mounting process using a vacuum pick-up method.
  • FIG. 2 is a perspective view of an electric contact terminal 110 according to another embodiment of the present invention.
  • a metal brace 50 is disposed on an outer surface of a bottom surface of an elastic core 10.
  • An insulating non-foam rubber coating layer 20 encloses an entire outer exposed surface of the elastic core 10 and a portion of an outer exposed surface of the metal brace 50.
  • a heat resistant polymer film 30 encloses an outer surface of the insulating non-foam rubber coating layer 20. Both ends of the heat resistant polymer film 30 are spaced from each other to form an opening 42. Solder cream is in contact with the metal brace 50 through the opening 42 during the soldering process. It is apparent that the insulating non-foam rubber coating layer 20 is not formed in the opening 42.
  • the electric contact terminal 100 can be rigidly adhered to the PCB after soldering. Since an upper portion of the electric contact terminal 100 can be easily distinguished from a lower portion thereof, a reel taping operation can easily be performed. Particularly, the electric contact terminal cannot be easily moved by wind supplied during a surface mounting process using a vacuum pick-up method due to a self- weight of the metal brace 50.
  • the electric contact terminal since the outer surface of the electric contact terminal is formed of the metal layer, the electric contact terminal has good electrical conductivity and is well soldered.
  • the insulating non-foam rubber having the tube shape is used for the elastic core and manufactured using the extrusion process. Therefore, the manufacturing costs are low because the used materials are small in number, and the elasticity of the electric contact terminal can be adjusted by adjusting a diameter of an inner through hole without consideration of a foaming rate. Also, the small size products can be easily manufactured.
  • the solder cream is in contact with the metal brace through the opening when the electric contact terminal is mounted on the PCB. Therefore, the electric contact terminal can be rigidly adhered to the PCB. Also, since the upper portion of the electric contact terminal can be easily distinguished from the lower portion thereof, the reel taping operation can easily be performed. Particularly, the electric contact terminal cannot be easily moved by wind supplied during the surface mounting process using a vacuum pick-up method due to a self- weight of the metal brace.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing & Machinery (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

L'invention porte sur une borne de contact électrique élastique soudable. La borne de contact électrique élastique comporte une âme élastique isolante comportant un caoutchouc non mousse présentant une forme tubulaire, une couche de revêtement en caoutchouc non mousse isolant collé à l'âme élastique isolante de telle manière que la couche de revêtement caoutchouc non mousse isolant entoure l'âme élastique isolant, et un film de polymère résistant à la chaleur possédant un côté collé à la couche de revêtement en caoutchouc non mousse isolant, de telle sorte que le film en polymère résistant à la chaleur entoure la couche de revêtement en caoutchouc non mousse isolant et un autre côté sur lequel une couche métallique est formée d'un seul tenant.
PCT/KR2008/002122 2008-03-07 2008-04-15 Borne de contact électrique élastique soudable WO2009110653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0021640 2008-03-07
KR1020080021640A KR100839893B1 (ko) 2008-03-07 2008-03-07 솔더링 가능한 탄성 전기접촉단자

Publications (1)

Publication Number Publication Date
WO2009110653A1 true WO2009110653A1 (fr) 2009-09-11

Family

ID=39771949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/002122 WO2009110653A1 (fr) 2008-03-07 2008-04-15 Borne de contact électrique élastique soudable

Country Status (4)

Country Link
KR (1) KR100839893B1 (fr)
CN (1) CN101527400B (fr)
TW (1) TW200939943A (fr)
WO (1) WO2009110653A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2434859A2 (fr) * 2009-05-18 2012-03-28 Doo Sung Industrial Co., Ltd. Borne de contact conductrice à monter sur une surface de substrat
EP2442628A3 (fr) * 2010-10-14 2014-05-07 Innochips Technology Co., Ltd. Joint de protection contre les interférences électromagnétiques
CN114830456A (zh) * 2019-11-15 2022-07-29 卓英社有限公司 弹性电接触端子

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KR101001354B1 (ko) * 2008-07-01 2010-12-14 조인셋 주식회사 리플로우 솔더링이 가능한 탄성 전기접촉단자
KR100888238B1 (ko) 2008-06-09 2009-03-12 조인셋 주식회사 리플로우 솔더링이 가능한 탄성 전기접촉단자
KR101018735B1 (ko) * 2008-12-15 2011-03-04 조인셋 주식회사 솔더링이 가능한 탄성 전기접촉단자
KR100920469B1 (ko) 2008-12-30 2009-10-08 두성산업 주식회사 도전성 탄성블럭
KR101046765B1 (ko) 2009-01-09 2011-07-06 조인셋 주식회사 솔더링 가능한 탄성 전기접촉단자
KR101043283B1 (ko) 2009-04-15 2011-06-22 주식회사 이노칩테크놀로지 전기 전도성 가스켓 및 그 제조 방법
KR101022037B1 (ko) 2009-05-21 2011-03-16 조인셋 주식회사 탄성 전기접촉단자
KR101040594B1 (ko) * 2010-04-16 2011-06-10 최철수 표면실장용 가스켓 및 그 제조방법
KR100993253B1 (ko) 2010-04-28 2010-11-10 김선기 탄성 전기접촉단자
KR101201410B1 (ko) 2011-05-31 2012-11-14 주식회사 이엔씨테크 회로기판용 탄성 전기접촉단자
KR101228888B1 (ko) * 2011-05-31 2013-02-01 김선기 탄성단자 모듈과 그 제조장치 및 제조방법
WO2012169674A1 (fr) * 2011-06-08 2012-12-13 Choi Chul Soo Joint d'étanchéité à montage de surface et son procédé de fabrication
KR101084282B1 (ko) * 2011-06-15 2011-11-17 김선기 솔더링이 가능한 탄성 전기접촉단자
DE112013003715T5 (de) * 2012-07-28 2015-06-03 Laird Technologies, Inc. Mit metallischem Film überzogener Schaumstoffkontakt
CN104053329B (zh) * 2013-03-14 2017-01-11 宏达国际电子股份有限公司 电子模块
DE102014005339B4 (de) 2014-01-28 2022-06-09 Wolfgang B. Thörner Verfahren zur Herstellung eines Kontaktelements
CN108112164A (zh) * 2015-01-20 2018-06-01 群创光电股份有限公司 显示装置
WO2016153116A1 (fr) * 2015-03-23 2016-09-29 조인셋 주식회사 Borne de contact électrique élastique ayant une résistance environnementale améliorée, et procédé de fabrication correspondant
US20160336093A1 (en) * 2015-05-15 2016-11-17 Joinset Co., Ltd. Elastic electric contact terminal adapted to small size
CN106298883B (zh) 2015-06-04 2020-09-15 昆山工研院新型平板显示技术中心有限公司 一种薄膜晶体管及其制备方法
WO2017031712A1 (fr) * 2015-08-26 2017-03-02 Covidien Lp Ensembles effecteurs terminaux électrochirurgicaux et pinces électrochirurgicales conçues pour réduire l'étalement thermique
CN111200195B (zh) * 2018-11-20 2021-06-18 卓英社有限公司 弹性电接触端子
KR102340421B1 (ko) * 2019-06-12 2021-12-17 조인셋 주식회사 부착 강도가 향상된 솔더링이 가능한 전기전도성 개스킷
CN112822833A (zh) * 2021-02-22 2021-05-18 苏州康丽达精密电子有限公司 一种smt导电弹性垫片及其制造工艺
CN113923853B (zh) * 2021-10-22 2022-07-22 深圳市卓汉材料技术有限公司 一种接地弹性体及其制作方法

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JPH06350282A (ja) * 1993-06-08 1994-12-22 Kitagawa Ind Co Ltd 電磁波シールド用ガスケット
JPH09307263A (ja) * 1996-05-17 1997-11-28 Kitagawa Ind Co Ltd 電磁波シールド用ガスケット
JPH11346082A (ja) * 1998-06-03 1999-12-14 Takeuchi Kogyo Kk シールドソフトパッキン及びこれを備える電子機器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2434859A2 (fr) * 2009-05-18 2012-03-28 Doo Sung Industrial Co., Ltd. Borne de contact conductrice à monter sur une surface de substrat
EP2434859A4 (fr) * 2009-05-18 2014-10-01 Doo Sung Ind Co Ltd Borne de contact conductrice à monter sur une surface de substrat
EP2442628A3 (fr) * 2010-10-14 2014-05-07 Innochips Technology Co., Ltd. Joint de protection contre les interférences électromagnétiques
US8907229B2 (en) 2010-10-14 2014-12-09 Innochips Technology Co., Ltd. EMI shielding gasket
CN114830456A (zh) * 2019-11-15 2022-07-29 卓英社有限公司 弹性电接触端子

Also Published As

Publication number Publication date
KR100839893B1 (ko) 2008-06-19
CN101527400B (zh) 2011-08-17
CN101527400A (zh) 2009-09-09
TW200939943A (en) 2009-09-16

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