EP1855350A2 - Mise à la terre à monter dans un tube d'antenne pour améliorer la mise à la terre de l'antenne - Google Patents

Mise à la terre à monter dans un tube d'antenne pour améliorer la mise à la terre de l'antenne Download PDF

Info

Publication number
EP1855350A2
EP1855350A2 EP07114799A EP07114799A EP1855350A2 EP 1855350 A2 EP1855350 A2 EP 1855350A2 EP 07114799 A EP07114799 A EP 07114799A EP 07114799 A EP07114799 A EP 07114799A EP 1855350 A2 EP1855350 A2 EP 1855350A2
Authority
EP
European Patent Office
Prior art keywords
antenna
base ring
grounding
grounding clip
contact
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
EP07114799A
Other languages
German (de)
English (en)
Other versions
EP1855350A3 (fr
EP1855350B1 (fr
Inventor
Chao Chen
Tim Kyowski
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.)
BlackBerry Ltd
Original Assignee
Research in Motion 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
Priority claimed from CA002413360A external-priority patent/CA2413360C/fr
Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd
Publication of EP1855350A2 publication Critical patent/EP1855350A2/fr
Publication of EP1855350A3 publication Critical patent/EP1855350A3/fr
Application granted granted Critical
Publication of EP1855350B1 publication Critical patent/EP1855350B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • 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
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/02—Connectors or connections adapted for particular applications for antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

Definitions

  • the present invention relates generally to antenna grounding and mounting technology, and specifically to the mounting and grounding of an antenna in a mobile device. More particularly, the invention relates to a grounding clip for mounting within an antenna tube to enhance antenna grounding.
  • retractable antennae can convey water into the antenna tube when they move from an extended state to a retracted state, especially when the mobile device is used in the rain.
  • the present invention overcomes the shortcomings of the prior art by providing a superior antenna tube and clip combination for an antenna.
  • the present invention includes a clip that is inserted into the end of an antenna tube.
  • the clip includes at least one contact pin extending axially along the antenna tube, providing an extended surface for an antenna contact block to make contact when the contact block is in a retracted state.
  • the length of the contact area allows contact even when the antenna is not fully retracted. Further resilient forces in the contact clip ensure that good contact is made with the antenna contact block.
  • the present invention further has a flange at one end of the mounting tube in order to significantly reduce the possibility of axial movement during manufacturing.
  • This flange fits into a groove that is located on a printed circuit board (PCB).
  • PCB printed circuit board
  • the flange and groove can be created with high precision, thus providing a constant position for the fully retracted state of the antenna once the tube is mounted to the PCB. Without this groove and flange, slight axial movement of the tube could cause the contact point for a fully retracted antenna to shift towards or away from a mounting on the housing of the device within which the antenna is installed. By having a constant contact distance between the housing mount and the fully retracted position, grounding is facilitated.
  • the present invention further has an easy way to waterproof the antenna by providing a plastic tube that is mounted within an antenna tube assembly and captures any water conveyed into the tube assembly by a retracting antenna.
  • the use of a cap at the other end of the tube ensures no water can enter from that end.
  • the present invention therefore provides an antenna grounding assembly for a hand-held device, said grounding assembly comprising: an antenna having an antenna shaft connected between a grounding block and a protective sheath; an antenna tube affixed within said hand-held device and holding said antenna, said antenna tube having an upper end through which said antenna shaft is extended or retracted, and an inner end opposite said upper end; and a grounding clip installed into said inner end of said antenna tube, said grounding clip having a base and at least one contact pin extending axially along said antenna tube for resilient contact with said grounding block.
  • the present invention further provides an antenna grounding assembly for a hand-held device, said grounding assembly comprising: an antenna having an antenna shaft connected between a grounding block and a protective sheath; an antenna tube affixed within said hand-held device and holding said antenna, said antenna tube having a flanged upper end through which said antenna shaft is extended or retracted, and an inner end opposite said upper end; a grounding clip installed into said inner end of said antenna tube; and a printed circuit board having a groove therein, said antenna tube being mounted to said printed circuit board using surface mount technology clips and said flanged end fitting into said groove to restrict axial movement of said antenna tube.
  • the invention provides a grounding clip for mounting within an antenna tube to enhance antenna grounding, the grounding clip comprising: a resilient base ring, said base ring having an outer circumference for contact with the antenna tube and a gap in said base ring for compression of said base ring; and at least one resiliently flexible contact pin being affixed to and extending from a first end of said base ring, wherein each of said at least one contact pin is adapted to contact a base of an antenna along a length of each of said at least one contact pin to enhance antenna grounding.
  • the grounding clip further comprises angled tabs affixed to and extending from a second end opposite said first end of said base ring, said angled tabs projecting inwardly from the outer circumference of said base ring.
  • the grounding further comprises angled tabs affixed to and extending from said first end of said base ring, said angled tabs projecting inwardly from the outer circumference of said base ring.
  • the grounding further comprises two resiliently flexible contact pins.
  • the contact pins are affixed along said base ring at an angle of between 90 and 120 degrees.
  • the at least one contact pin has a bend therein, the at least one contact pin extending inwardly from said outer circumference of said base ring between said bend and said base ring, and extending back towards said outer circumference of said base ring after said bend.
  • the at least one contact pin is formed to be integral to said base ring.
  • the at least one contact pin has a forked end on an end of said at least one contact pin opposite said base ring.
  • the at least one contact pin has a tab at an end of said at least one contact pin opposite said base ring, said tab adapted to bear against said antenna tube.
  • the grounding clip is formed through a progressive stamping die.
  • the at least one contact pin is gold plated and is formed of metal.
  • the at least one grounding clip is curved to fit about the antenna base in a contact area.
  • the invention provides a mobile device having an antenna assembly including the grounding clip of the first main aspect.
  • the invention provides a method of grounding an antenna, comprising: providing a grounding clip for mounting within a tube of the antenna, the grounding clip comprising a resilient base ring, said base ring having an outer circumference for contact with the antenna tube and a gap in said base ring for compression of said base ring; and at least one resiliently flexible contact pin being affixed to and extending from a first end of said base ring, the method further comprising arranging each of said at least one contact pin to contact a base of an antenna along a length of each of said at least one contact pin to enhance antenna grounding.
  • Figures 1 and 2 show a tube assembly 10 for a retractable antenna 25.
  • Tube assembly 10 includes an outer metal wall 12 that is formed to a precise inner diameter ensuring very little deviation.
  • Tube assembly 10 is mounted to a printed circuit board (PCB) 14 using surface mount technology clips (SMT) 16.
  • SMT clips provide an electrical contact between tube assembly 10 and PCB 14.
  • Antenna 25 includes an external protective sheath 30 at the antenna's outer tip, an antenna shaft 32, and a contact block 34 (seen more clearly in Figure 3). Antenna 25 is held at the shaft's upper end to the hand held device using a mount 36. Mount 36 provides some stability for antenna 25 and further provides some weather protection for tube assembly 10 to limit the ingress of water.
  • a user can extend antenna 25 by pulling external sheath 30 outwardly relative to the hand held device. This causes antenna shaft 32 to move through mount 36, pulling antenna contact block 34 with it. Contact block 34 moves from a position near the inner end 18 of tube assembly 10 to a position towards the outer end 20 of tube assembly 10.
  • retraction is performed by pushing external protective sheath 30 towards the hand held device, causing antenna contact block 34 to move towards inner end 18 of tube assembly 10.
  • Grounding clip 40 is best seen in Figures 3 to 15.
  • Clip 40 consists of at least one, but preferably two resiliently flexible contact pins 42 connected to or formed integrally with a base ring 44.
  • grounding clip 40 is installed into the inner open end 18 of tube assembly 10.
  • Tube assembly 10 is formed with a circumferentially extending groove 46 that is used to hold grounding clip 40 in place.
  • clip 40 can be inserted into tube 10 until base ring 44 snap fits securely into the space between groove 46 and the tube's inwardly curved lip 48 with both the insertion of the clip and, if necessary, its removal, being facilitated by the angled tabs 41 at the inner and outer ends of the base ring 44.
  • the end of tube assembly 10 is preferably formed into a tapered lip 48.
  • Clip 40 is then installed into the space between groove 46 and lip 48 using some elastic deformation of the clip to fit it over lip 48. Preferably, a small jig is used to accomplish this insertion. Grounding clip 40 is thus locked in place between the tapered lip 48 of tube assembly 10 and groove 46.
  • Each contact pin 42 is essentially dog legged in shape which provides for clearance between each pin and groove 46 and allows the longer portion 43 of each pin to taper from the dog leg's apex 52 to tab 50 that is adapted to bear against the tube 10's inner surface.
  • the surface 55 of each pin portion 43 between apex 52 and tab 50 is a flexible contact area for making electrical contact between clip 40 and contact block 34 at the inner end of the antenna's shaft as the antenna is fully or partially retracted.
  • Figure 15 shows that if antenna contact block 34 is located between points 54 and 56 of contact area 55, contact pin 42 makes physical and electrical contact with the antenna contact block 34.
  • Contact pin 42 is preferably gold plated within this area to ensure optimal contact and hence grounding.
  • Grounding clip 40 is preferably formed through a progressive stamping die. This ensures that the clip has very well controlled dimensions for consistent installation within each tube assembly 10. This ensures that pins 42 have very good repeatable positions when compared between one tube assembly 10 and another.
  • the slope between points 54 and 56 is designed to produce an optimal contact area. This is done by ensuring that the contact area 55 is as long as possible, and that contact pin 42 is resiliently flexible. This assembly creates a long contact area 55 that produces more chances for the grounding of antenna 25. Specifically, antenna 25 does not need to be fully retracted into the tube in order to achieve proper grounding.
  • clip 40 includes two contact pins 42.
  • the use of two pins ensures that proper contact is maintained with antenna contact block 34 by providing a three contact grounding.
  • the first two contact points are between block 34 and the two contact areas 55 on contact pins 42.
  • the spring forces produced by contact pins 42 on antenna contact block 34 will force antenna contact block 34 into contact with the inside of tube assembly 10, created a third grounding point as shown most clearly in Figure 15.
  • the optimal configuration for contact pins 42 will not be diametrically opposed to one another, but rather at an angle of between 90 and 120 degrees from one another.
  • contact pins 42 are possible.
  • One contact pin could, for example, be used as long as the pin was sufficiently stable to provide a good contact area 55.
  • Figures 16 and 17 show alternative configurations for contact pin 42.
  • a contact pin 42 is shown with a forked end 43.
  • Forked end 43 provides sufficient stability to ensure contact pin 42 does not move when antenna contact block 34 is retracted.
  • contact pin 42 can be curved, as illustrated in Figure 17.
  • Figure 17 shows contact pin 42 with a single contact point 55 at one end.
  • contact area 55 is curved to fit around antenna contact block 34, ensuring contact pin 42 is not moved to the side of antenna contact block 34 when antenna 25 is retracted.
  • Tube assembly 10 is mounted to PCB 14 using surface mount technology clips 16.
  • SMT clips 16 are used, and these clips 16 connect to associated clips on PCB 14. Clips 16 will hold tube assembly 10 in the X and Y directions. The combination of two clips will restrict rotation in the X and Y axes.
  • the present invention further includes a radially extending flange 60 at the front or upper end of tube assembly 10.
  • Flange 60 fits into a groove 62 cut into PCB 14. The combination of flange 60 and groove 62 ensures that tube assembly 10 will not move in the tube's axial direction.
  • One advantage of the above mounting technique is that contact performance will be improved. If the tube were allowed to move axially, the retraction point of antenna contact block 34 would vary, thus making accurate grounding more difficult to achieve.
  • the present invention further provides for improved waterproofing by providing a tube 70 within tube assembly 10. Water may enter tube assembly 10 from mount 36 when antenna 25 is retracted. This is overcome by plastic tube 70 and cap 72.
  • Tube 70 is preferably fabricated from plastic and is affixed to mount 36. Tube 70 extends from mount 36 to contact area 55. Preferably, a small gap exists between tube 70 and tube assembly 10 to facilitate insertion of plastic tube 70 into tube assembly 10. Further, even after the housing of the mobile device is closed, plastic tube 70 can be inserted into tube assembly 10 using the opening for mount 36.
  • Cap 72 can be comprised of metal or plastic, and fits snugly on the end of tube assembly 10, thus providing a seal.
  • the present invention is directed at the mounting and grounding of an antenna in a mobile device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
EP07114799A 2002-11-29 2003-11-28 Clip de mise à la masse et procédé correspondant Expired - Lifetime EP1855350B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002413360A CA2413360C (fr) 2002-11-29 2002-11-29 Combinaison d'un tube et d'une pince pour la mise a la masse d'une antenne sans fil
US43008202P 2002-12-02 2002-12-02
EP03778190A EP1568100B1 (fr) 2002-11-29 2003-11-28 Combinaison tubes et clip pour mise a la terre de l'antenne d'un dispositif sans fil

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP03778190A Division EP1568100B1 (fr) 2002-11-29 2003-11-28 Combinaison tubes et clip pour mise a la terre de l'antenne d'un dispositif sans fil
EP03778190.3 Division 2003-11-28

Publications (3)

Publication Number Publication Date
EP1855350A2 true EP1855350A2 (fr) 2007-11-14
EP1855350A3 EP1855350A3 (fr) 2008-02-27
EP1855350B1 EP1855350B1 (fr) 2012-02-22

Family

ID=32471132

Family Applications (3)

Application Number Title Priority Date Filing Date
EP06113174A Expired - Lifetime EP1689024B1 (fr) 2002-11-29 2003-11-28 Dispositif de mise à la masse d'antenne pour un téléphone portable
EP07114799A Expired - Lifetime EP1855350B1 (fr) 2002-11-29 2003-11-28 Clip de mise à la masse et procédé correspondant
EP03778190A Expired - Lifetime EP1568100B1 (fr) 2002-11-29 2003-11-28 Combinaison tubes et clip pour mise a la terre de l'antenne d'un dispositif sans fil

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06113174A Expired - Lifetime EP1689024B1 (fr) 2002-11-29 2003-11-28 Dispositif de mise à la masse d'antenne pour un téléphone portable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03778190A Expired - Lifetime EP1568100B1 (fr) 2002-11-29 2003-11-28 Combinaison tubes et clip pour mise a la terre de l'antenne d'un dispositif sans fil

Country Status (7)

Country Link
EP (3) EP1689024B1 (fr)
CN (1) CN100487977C (fr)
AT (3) ATE546854T1 (fr)
AU (1) AU2003285241A1 (fr)
DE (3) DE03778190T1 (fr)
HK (2) HK1094094A1 (fr)
WO (1) WO2004051795A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA94835C2 (ru) * 2010-02-12 2011-06-10 Игорь Захарович Мысевич Безвинтовой зажим электрических проводов
CN110534931B (zh) * 2019-08-30 2020-12-22 Oppo（重庆）智能科技有限公司 线夹及电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383645A (en) 1967-04-04 1968-05-14 Elco Corp Female socket contact having a spring-clip
EP0476848A1 (fr) 1990-09-07 1992-03-25 ITT INDUSTRIES, INC. (a Delaware corporation) Montage de contact à fiches avec embouchure étranglée
US5232382A (en) 1992-08-28 1993-08-03 Foxconn International, Inc. PGA socket contact
JPH0697712A (ja) 1992-09-14 1994-04-08 Yokowo Co Ltd 無線機用アンテナ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734064A (en) * 1986-08-29 1988-03-29 Amphenol Corporation Electrical socket contact with convex engaging tines
US5739792A (en) * 1995-12-22 1998-04-14 Motorola, Inc. Wireless communication device with electrical contacts
US6064341A (en) * 1998-05-14 2000-05-16 Motorola, Inc. Antenna assembly
JP2000188503A (ja) * 1998-12-22 2000-07-04 Yokowo Co Ltd 携帯無線機用アンテナ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383645A (en) 1967-04-04 1968-05-14 Elco Corp Female socket contact having a spring-clip
EP0476848A1 (fr) 1990-09-07 1992-03-25 ITT INDUSTRIES, INC. (a Delaware corporation) Montage de contact à fiches avec embouchure étranglée
US5232382A (en) 1992-08-28 1993-08-03 Foxconn International, Inc. PGA socket contact
JPH0697712A (ja) 1992-09-14 1994-04-08 Yokowo Co Ltd 無線機用アンテナ

Also Published As

Publication number Publication date
EP1855350A3 (fr) 2008-02-27
ATE384343T1 (de) 2008-02-15
DE60318741D1 (de) 2008-03-06
AU2003285241A8 (en) 2004-06-23
HK1094094A1 (en) 2007-03-16
ATE384344T1 (de) 2008-02-15
EP1568100A2 (fr) 2005-08-31
EP1689024B1 (fr) 2008-01-16
AU2003285241A1 (en) 2004-06-23
HK1081329A1 (en) 2006-05-12
CN1717841A (zh) 2006-01-04
CN100487977C (zh) 2009-05-13
EP1689024A1 (fr) 2006-08-09
ATE546854T1 (de) 2012-03-15
EP1568100B1 (fr) 2008-01-16
EP1855350B1 (fr) 2012-02-22
DE03778190T1 (de) 2006-03-23
WO2004051795A2 (fr) 2004-06-17
WO2004051795A3 (fr) 2004-08-12
DE60318756T2 (de) 2009-01-22
DE60318756D1 (de) 2008-03-06
DE60318741T2 (de) 2008-12-24

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