WO2012045239A1 - Raccordement électrique et mécanique - Google Patents

Raccordement électrique et mécanique Download PDF

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Publication number
WO2012045239A1
WO2012045239A1 PCT/CN2011/073750 CN2011073750W WO2012045239A1 WO 2012045239 A1 WO2012045239 A1 WO 2012045239A1 CN 2011073750 W CN2011073750 W CN 2011073750W WO 2012045239 A1 WO2012045239 A1 WO 2012045239A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact pin
pcb
contact
pin
mechanical
Prior art date
Application number
PCT/CN2011/073750
Other languages
English (en)
Inventor
Fredrik Ohlsson
Original Assignee
Huawei Technologies 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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2012045239A1 publication Critical patent/WO2012045239A1/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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/03—Conductive materials
    • H05K2201/0302—Properties and characteristics in general
    • H05K2201/0311—Metallic part with specific elastic properties, e.g. bent piece of metal as electrical contact
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/1006—Non-printed filter
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/1031—Surface mounted metallic connector elements
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10954—Other details of electrical connections
    • H05K2201/10962—Component not directly connected to the 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/306—Lead-in-hole components, e.g. affixing or retention before soldering, spacing means
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a device for providing a mechanical and electrical connection between a radio frequency filter (RF filter), with a radio frequency contact pin, and a printed circuit board (PCB), where the contact pin is adapted to be inserted through a pre-made hole in the PCB and where the device is adapted prevent the contact pin from leaving the PCB hole, thereby providing the mechanical and electrical connection.
  • RF filter radio frequency filter
  • PCB printed circuit board
  • the present invention also relates to a PCB with a device, a method to manufacture the device and a method to use the device.
  • the main technical problem with known solutions is that because of the manufacturing method, the size and footprint on the PCB is large.
  • the present invention teaches that the device is made out of a piece of sheet material, that the device has an opening with a number of radial cut-outs forming a number of contact tabs, that the device is adapted to be forced over the contact pin, that the diameter of the opening is smaller than the diameter of the contact pin so that a radial contact force is created as the tabs are pressed back by the pin when the device is pressed over the pin, that the inner surface of the tabs is made out of an electrically conductible material, adapted to provide the electrical connection between the contact pin and the PCB, and that the opening is given a diameter in relation to the diameter of the contact pin that will provide a contact force sufficiently strong to create a sufficient contact force and provide the mechanical connection.
  • the tabs have a raised shape so that each tab is flexible in a radial direction, where the inner tab surfaces forms the opening.
  • the material of the device must have spring properties, such as a metal with spring properties. This material can be beryllium copper, spring steel or similar.
  • the hole device is plated with a low contact resistance plating.
  • This plating could for instance be gold or silver.
  • the present invention also relates to a printed circuit board (PCB) adapted to be mechanically and electrically connected to a radio frequency filter (RF filter) with a radio frequency contact pin, where the contact pin is adapted to be inserted through a pre-made hole in the PCB and where a device is adapted prevent the contact pin from leaving the PCB hole, thereby providing the mechanical and electrical connection.
  • PCB printed circuit board
  • RF filter radio frequency filter
  • the contact pin is adapted to be inserted through a pre-made hole in the PCB and where a device is adapted prevent the contact pin from leaving the PCB hole, thereby providing the mechanical and electrical connection.
  • the PCB is provided with an inventive device where the plating can be soldered, and that the device is soldered to the PCB over the pre-made hole, adapted to receive and connect mechanically and electrically to a contact pin pressed through the pre-made hole and the device.
  • the present invention also relates to a method of manufacturing a device adapted to mechanically and electrically connect a contact pin belonging to a RF filter to a PCB with a pre-made hole for the contact pin, by cutting, stamping or punching a piece of sheet material, stamping or punching an opening in said sheet material and forming contact tabs around said opening by stamping or punching radial cut-outs from the opening.
  • the opening is given a diameter which is smaller than the diameter of the contact pin so that a radial contact force is created as the tabs are pressed back by the pin when the device is pressed over the pin, the force being sufficiently strong to create a sufficient contact force and provide the mechanical and electrical connection.
  • Another proposed embodiment teaches that the piece is pressed to raise the tabs into a shape so that each tab is flexible in radial direction, where the inner tab surfaces forms the opening, giving the opening a diameter which is smaller than the diameter of the contact pin so that a radial contact force is created as the tabs are pressed back by the pin when the device is pressed over the pin, the force being sufficiently strong to create a sufficient contact force and provide the mechanical and electrical connection.
  • a sheet material with spring properties is used, such as beryllium copper, spring steel or similar, to provide tabs with elastic properties.
  • At least the inner surface of the device is plated with low contact resistance plating, such as gold or silver.
  • the present invention also relates to a method of establishing a mechanical and electrical connection between a radio frequency filter (RF filter), with a radio frequency contact pin, and a printed circuit board (PCB), where the contact pin is inserted through a pre-made hole in the PCB and where a device is adapted prevent the contact pin from leaving the PCB hole. It is proposed to use an inventive device, and pressing the device over the contact pin, thereby providing the mechanical and electrical connection.
  • RF filter radio frequency filter
  • PCB printed circuit board
  • a mechanical and electrical connection is established between the radio frequency filter (RF filter) and the radio frequency contact pin by inserting the contact pin through a pre-made hole in the RF filter, and pressing an inventive device over the contact pin, thereby providing the mechanical and electrical connection.
  • RF filter radio frequency filter
  • contact device and contact pin as the interface between RF filters and PCB is a very efficient solution.
  • the arrangement is simple, robust and can handle high power and relatively large mechanical tolerances between the PCB and RF filter.
  • the manual assembly process of the PCB to the RF filter is very simple and safe.
  • a device according to the invention has a lower building height, less footprint, and can be manufactured to a much lower cost than a known contact sleeve.
  • the device according to the invention can reduce the cost of a RF interface to 1/3 or less compared to the solution with the sleeve.
  • a typical transceiver unit 4-6 interfaces of this kind can be present.
  • the available PCB area can also be increased since the size of the device can be minimized and adjusted to the required power. Different requirements for tolerance handling can also be handled by adjusting the size.
  • Figure 1 is a simplified side sectional view of the connection of a RF filter to a PCB with an inventive device
  • Figure 2 is a view of a first embodiment of an inventive device
  • Figure 3 is a side sectional view of a second embodiment of an
  • Figure 4 is a side sectional view of an inventive PCB
  • Figure 5 is a side sectional view of a contact pin connected to an RF filter by means of an inventive device.
  • RF filter radio frequency filter
  • PCB printed circuit board
  • a device 3 is adapted prevent the contact pin 11 from leaving the PCB hole 21 , thereby providing a mechanical and electrical connection between the RF filter 1 and the PCB 2.
  • Figure 2 shows an inventive device 3 that is made out of a piece of sheet material 31 and that it has an opening 32 with a number of radial cut-outs 33a, 33b, 33n forming a number of contact tabs 34a, 342, 34n.
  • the device 3 is adapted to be forced over the contact pin 1 1 from the RF filter 1 and it is proposed that the diameter 32a of the opening 32 is smaller than the diameter 1 1 a of the contact pin 1 1 so that a radial contact force is created as the tabs 34a, 34b, 34n are pressed back by the pin 11 when the device 3 is pressed over the pin 11 .
  • the opening 32 is given a diameter 32a in relation to the diameter 1 1 a of the contact pin 1 1 that will provide a contact force sufficiently strong to create a sufficient contact force and provide the mechanical connection.
  • the device 3 As the device 3 is pressed over the contact pin 1 1 all the way down to make contact with the PCB 2 the device 3 will provide an electrical connection between the contact pin 11 and the PCB 2.
  • Figure 3 shows a sectional view of a device 3' illustrating an exemplifying embodiment where smooth contact surface between the device 3' and the contact pin 1 1 is provided by giving tabs 34a', 34x' on the device 3' a raised shape so that each tab 34a', 34x' is flexible in a radial direction, where the inner tab surfaces forms the opening 32' of the device 3, which thus formed opening 32' has a diameter 32a' in relation to the diameter 1 1a of the contact pin 11 that will provide the radial contact force between the tabs 34a', 34x' and the contact pin 11 required to provide the electrical and mechanical contact between the device 3' and the contact pin 1 1.
  • the material of the device 3, 3' is metal with spring properties, such as beryllium copper, spring steel or similar.
  • Figure 4 shows that the present invention also relates to a printed circuit board (PCB) 4 adapted to be mechanically and electrically connected to a radio frequency filter (RF filter) with a radio frequency contact pin, where said contact pin is adapted to be inserted through a pre-made hole 41 in the PCB 4 and where a device 5 is adapted prevent the contact pin from leaving the PCB hole 41 , thereby providing the mechanical and electrical connection.
  • PCB printed circuit board
  • RF filter radio frequency filter
  • the present invention teaches that the device 5 is an inventive device 3, 3' as previously described, that the plating 51 of the device can be soldered, and that the device 5 is soldered to the PCB 4 over the pre-made hole 41 .
  • the inventive PCB 4 is thus adapted to receive and connect mechanically and electrically to a contact pin that is pressed through the pre-made hole 41 and the device 5.
  • the present invention also relates to a method of manufacturing a device adapted to mechanically and electrically connect a contact pin belonging to a RF filter to a PCB with a pre-made hole for the contact pin, which will be described with renewed reference to figure 2.
  • the method of manufacturing comprises cutting, stamping or punching a piece of sheet material 31 , stamping or punching an opening 32 in the sheet material 31 and forming contact tabs 34a, 34b, 34n around the opening 32 by stamping or punching radial cut-outs 33a, 33b, 33n from the opening 32. It should be understood that depending on used technique for this method several of these steps can be performed at the same time, for instance, if punching, it is possible to punch both the piece of sheet material 31 , the hole 32, and the cutouts 33a, 33b, 33n in one punch.
  • the opening 32 is given a diameter 32a which is smaller than the diameter 1 1a of the contact pin 1 1 so that a radial contact force is created as the tabs 34a, 34b, 34n are pressed back by the pin 1 1 when the device 3 is pressed over the pin 1 1 , the force being sufficiently strong to create a sufficient contact force and provide the mechanical and electrical connection.
  • manufacturing comprises pressing the piece 31 ' to raise the tabs 34a', 34x' into a shape so that each tab is flexible in radial direction, where the inner tab surfaces forms the opening 32', giving the opening 32' a diameter 32a' which is smaller than the diameter 11 a of the contact pin 11 so that a radial contact force is created as the tabs 34a', 34x' are pressed back by the pin 1 1 when the device 3' is pressed over the pin 11 , the force being sufficiently strong to create a sufficient contact force and provide the mechanical and electrical connection.
  • a sheet material with spring properties is used for the manufacturing of the device 3. 3', such material could be beryllium copper, spring steel or similar.
  • the method of manufacturing comprises plating the device with low contact resistance plating 36, 36', such as gold or silver.
  • Plating can be done to the sheet material before or after the cutting, stamping or punching of the device.
  • the present invention also relates to a method of establishing a mechanical and electrical connection between a radio frequency filter (RF filter) 1 , with a radio frequency contact pin 1 1 , and a printed circuit board (PCB) 2, where the contact pin 11 is inserted through a pre-made hole 21 in the PCB 2 and where a device 3 is adapted to prevent the contact pin 1 1 from leaving the PCB hole 21 .
  • RF filter radio frequency filter
  • PCB printed circuit board
  • a shown in figure 5 it is also proposed that a mechanical and electrical connection between the radio frequency filter (RF filter) 1 ' and the radio frequency contact pin 1 1 ' can be established by inserting the contact pin 1 1 ' through a pre- made hole 12' in the RF filter 1 ', and pressing an inventive device 3, 3' as described above over the contact pin 11 ', thereby providing the mechanical and electrical connection.
  • RF filter radio frequency filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

L'invention concerne un dispositif (3) destiné à établir un raccordement mécanique et électrique entre un filtre radiofréquence (filtre RF) (1) à l'aide d'une broche de contact radiofréquence (11), et une carte de circuit imprimé (PCB, Printed Circuit Board) (2), la broche de contact (11) étant apte à être insérée à travers un trou préalablement créé (21) dans la carte PCB (2) et le dispositif (3) étant conçu pour éviter que la broche de contact (11) ne sorte du trou (21) ménagé dans la carte PCB, pour ainsi établir le raccordement mécanique et électrique. Le dispositif (3) est réalisé à partir d'un morceau de feuille (31) qui présente une ouverture (32) comportant un certain nombre de découpures radiales (33a, 33b,..., 33n) formant un certain nombre de pattes de contact (34a, 34b,..., 34n). Le dispositif (3) est apte à être enfoncé sur la broche de contact (11). Le diamètre (32a) de l'orifice (32) est inférieur au diamètre de la broche de contact (11) afin qu'une force de contact radiale soit créée lorsque les pattes (34a, 34b,..., 34n) sont rabattues par la broche (11) lorsque le dispositif (3) est réalisé à partir d'un matériau électriquement conducteur (36), apte à créer un raccordement électrique entre la broche de contact (11) et la carte PCB (2). L'orifice (32) présente un diamètre lié au diamètre de la broche de contact (11) qui produira une force de contact suffisamment intense pour créer une force de contact suffisante et créer le raccordement mécanique.
PCT/CN2011/073750 2010-10-08 2011-05-06 Raccordement électrique et mécanique WO2012045239A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SEPCT/SE2010/000239 2010-10-08
SE2010000239 2010-10-08
SE1000997 2010-10-08
SESE1000997-5 2010-10-08

Publications (1)

Publication Number Publication Date
WO2012045239A1 true WO2012045239A1 (fr) 2012-04-12

Family

ID=45927209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/073750 WO2012045239A1 (fr) 2010-10-08 2011-05-06 Raccordement électrique et mécanique

Country Status (1)

Country Link
WO (1) WO2012045239A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104219879A (zh) * 2014-09-05 2014-12-17 武汉永力睿源科技有限公司 一种印刷电路板的电气连接方法及产品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670409A (en) * 1970-11-19 1972-06-20 Gte Automatic Electric Lab Inc Planar receptacle
US5181859A (en) * 1991-04-29 1993-01-26 Trw Inc. Electrical connector circuit wafer
CN1025011C (zh) * 1991-10-07 1994-06-15 李文元 垫圈的制造方法
CN2747821Y (zh) * 2004-11-23 2005-12-21 番禺得意精密电子工业有限公司 电路板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670409A (en) * 1970-11-19 1972-06-20 Gte Automatic Electric Lab Inc Planar receptacle
US5181859A (en) * 1991-04-29 1993-01-26 Trw Inc. Electrical connector circuit wafer
CN1025011C (zh) * 1991-10-07 1994-06-15 李文元 垫圈的制造方法
CN2747821Y (zh) * 2004-11-23 2005-12-21 番禺得意精密电子工业有限公司 电路板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104219879A (zh) * 2014-09-05 2014-12-17 武汉永力睿源科技有限公司 一种印刷电路板的电气连接方法及产品

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