WO2004095652A1 - Connecteur electrique coaxial - Google Patents

Connecteur electrique coaxial Download PDF

Info

Publication number
WO2004095652A1
WO2004095652A1 PCT/US2004/011526 US2004011526W WO2004095652A1 WO 2004095652 A1 WO2004095652 A1 WO 2004095652A1 US 2004011526 W US2004011526 W US 2004011526W WO 2004095652 A1 WO2004095652 A1 WO 2004095652A1
Authority
WO
WIPO (PCT)
Prior art keywords
center terminal
mating
passage
terminal
housing
Prior art date
Application number
PCT/US2004/011526
Other languages
English (en)
Other versions
WO2004095652A8 (fr
Inventor
Yajun Wu
Xuedong Ma
Original Assignee
Molex Incorporated
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 Molex Incorporated filed Critical Molex Incorporated
Priority to US10/545,065 priority Critical patent/US7114989B2/en
Publication of WO2004095652A1 publication Critical patent/WO2004095652A1/fr
Publication of WO2004095652A8 publication Critical patent/WO2004095652A8/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • 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
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • This invention generally relates to the art of electrical connectors and, particularly, to a coaxial type electrical connector which has a center contact or terminal element.
  • Coaxial electrical connectors are used in a wide variety of applications for transmitting direct current, such as in charger sockets for such devices as cellular telephones or the like.
  • Such coaxial connectors include a center terminal and at least one auxiliary terminal spaced transversely or radially of the center terminal. Distal ends of the center terminal and the auxiliary terminal respectively mate with the positive and negative electrodes of a mating element such as a female coaxial connecting device. Opposite ends of the terminals may be connected, as by soldering, to appropriate circuit traces on a printed circuit board for transmitting current.
  • the center terminal is a critical component of the connector.
  • the terminals of such connectors typically are stamped and formed of conductive sheet metal material.
  • FIG. 1 shows a coaxial connector, generally designated 10, as disclosed in Chinese Patent No. 01280613.
  • the connector includes an insulating housing, generally designated 12; a center terminal, generally designated 14; and a pair of auxiliary terminals, generally designated 16 and 18.
  • the center terminal is inserted into a passage 12a of housing 12; auxiliary terminal 16 is inserted into a passage 12b in the housing; and auxiliary terminal 18 is inserted into a passage 12c in the housing.
  • Center terminal 14 includes a hollow cylindrical mating portion 14a, a solder tail portion 14b and a right-angled connecting portion 14c joining the mating portion to the solder tail portion.
  • a pair of mounting interference wings 14d project outwardly from opposite sides of the center terminal generally at the right-angled connecting portion 14c thereof.
  • the mounting interference wings have outwardly projecting teeth 14e.
  • FIG. 1 shows another coaxial cable, generally designated 20, according to the prior art.
  • This connector includes an insulating housing, generally designated 22; a center terminal, generally designated 24; and a pair of auxiliary te ⁇ ninals, generally designated 26 and 28.
  • the center terminal is inserted into a passage 22a in the housing, and the auxiliary terminals 26 and 28 are inserted into a pair of passages 22b and 22c, respectively, in the housing.
  • center terminal 24 has a cylindrical mating portion 24a, a solder tail portion 24b and a connecting portion 24c joining the cylindrical mating portion to the solder tail portion.
  • the mating portion has a pair of resilient contact fingers 24d to enhance the contact engagement with a mating female connecting device.
  • a pair of mounting interference hooks 24e are inclined outwardly from opposite sides of mating portion 24a near connecting portion 24c.
  • hooks 24e FIG. 2 might improve the stability of the center terminal versus wings 14d (Fig. 1), the improvement is rather small even when combined with any interference effect generated by connecting portion 24c with housing 22.
  • either the size of connecting portion 24c or wing portions 24e must be significantly increased which, in turn, will undesirably increase the transverse dimensions of housing 22. This would be undesirable when miniaturization of coaxial cables is ever- increasing.
  • the present invention is directed to solving these various problems of increasing the holding forces and, particularly, the stability of a center terminal in coaxial electrical connectors.
  • An object, therefore, of the invention is to provide a new and improved coaxial electrical connector of the character described.
  • the connector includes a dielectric housing having a front mating face and a rear face.
  • a first, central terminal-receiving passage extends in a direction between the faces, along with at least one second, auxiliary terminal-receiving passage. At least one auxiliary terminal is received in the second passage.
  • a center terminal is received in the first passage and includes an elongated mating portion projecting toward the mating face of the housing and defining a center axis.
  • the elongated mating portion has a front mating end and a rear end.
  • a terminating portion is spaced radially of the mating portion.
  • a connecting portion joins the mating portion and the terminating portion.
  • the connecting portion includes a stabilizing section which extends rearwardly along the axis from the rear end of the mating portion.
  • the stabilizing section bears against a section of the first passage in the housing to stabilize the elongated mating portion of the center terminal.
  • the elongated mating portion of the center terminal is cylindrical.
  • the stabilizing section of the connecting portion is arc-shaped and generally coincident with the cylindrical mating portion.
  • the center terminal may be stamped and formed of sheet metal material, and the arc-shaped stabilizing section thereby can be formed as a continuation of the cylindrical mating portion.
  • the connecting portion of the center terminal is generally J-shaped and includes a plate section extending between the arc-shaped stabilizing section and the terminating portion of the center terminal.
  • the elongated mating portion of the center terminal including an angled barb near a rear end thereof for engaging an inside retaining surface of the first passage of the housing to retain the center terminal in the passage.
  • the plate section of the J-shaped connecting portion of the center terminal includes a projection bearing against a wall of the first passage to further stabilize the mating portion of the center terminal.
  • Both the center terminal and the auxiliary terminal include terminating portions formed as solder tails for electrical connector to a printed circuit board.
  • FIG. 1 is an exploded perspective view of a prior art coaxial connector as described in the Background, above;
  • FIG. 2 is an exploded perspective view of another coaxial connector according to the prior art and also described in the Background, above;
  • FIG. 3 is a perspective view looking at the front mating end of a coaxial connector according to the invention.
  • FIG. 4 is a perspective view looking at the rear end of the coaxial connector of Figure 3;
  • FIG. 5 is an exploded perspective view of the coaxial connector of Figure 3;
  • FIG. 6 is a vertical section taken generally along line 6-6 in Figure 5;
  • FIG. 7 is a vertical section taken generally along line 7-7 in Figure 3; and
  • FIG. 8 is a view similar to that of Figure 7, with a mating connecting device inserted into the connector.
  • a coaxial electrical connector generally designated 30, which includes a dielectric housing, generally designated 32, mounting a center terminal, generally designated 34, and an auxiliary terminal, generally designated 36.
  • dielectric housing 32 has a front mating face 38 and a rear face 40.
  • the housing may be molded of plastic material.
  • a top face 42 and a side face 44 of the housing extend between the front and rear faces.
  • a receptacle 46 opens at the front face of the housing for receiving a mating connecting device as described below in relation to Figure 8.
  • Top face 42 has a pair of elongated openings 48 and 50, and side face 44 has an elongated opening 52.
  • a first, central terminal-receiving passage 54 extends in a direction between the front and rear faces of the housing and opens in the rear face as seen in Figure 5.
  • a second, auxiliary terminal-receiving passage 56 also opens at the rear face of the housing and extends thereinto generally parallel to first passage 54.
  • a connecting slot 58 joins first passage 54 with elongated opening 48.
  • a pair of holding grooves 60 are formed at opposite sides of elongated opening 8 and extend inwardly from rear face 40 to abutment shoulders 62.
  • a pair of holding grooves 64 are formed at opposite sides of elongated opening 50 and run from rear face 0 to abutment shoulders 66.
  • the first, central terminal-receiving passage 54 has a side slot 68 (Fig. 5) which runs from rear face 40 to a retaining shoulder or surface 70 shown in Figure 6.
  • the second, auxiliary terminal-receiving passage 56 has a lower portion 72.
  • center terminal 34 may be stamped and formed of conductive sheet metal material.
  • the center terminal includes an elongated, cylindrical mating portion 74 defining a center axis 75.
  • the mating portion has a semi-spherical front mating end 74a and a rear end 74b.
  • a terminating portion in the form of a solder tail 76 is spaced radially from and extends generally parallel to cylindrical mating portion 74.
  • a J-shaped connecting portion 78 joins mating portion 74 to terminating portion 76.
  • the connecting portion has an arc-shaped stabilizing section 78a which extends rearwardly along axis 75 from rear end 74b of mating portion 74.
  • the J-shaped connecting portion 78 has a plate section 78b which extends from the arc-shaped stabilizing section 78a to a horizontal or right-angled plate section 80 at the rear of terminating portion 76.
  • Plate section 80 forms a pair of holding wings 80a which project outwardly from terminating portion or solder tail 76 at the rear end thereof.
  • An angled barb 82 projects outwardly from cylindrical mating portion 74 near rear end 74b thereof.
  • a bearing projection 84 projects transversely outwardly from plate section 78b of the J-shaped connecting portion 78 of center terminal 34.
  • auxiliary terminal 36 also is stamped and formed of conductive sheet metal material in a generally U-shape to include a bottom plate 86, a side plate 88 and a top terminating portion in the form of a solder tail 90.
  • a spring contact portion 92 is formed out of an opening 94 in bottom plate 86.
  • the bottom plate also has teeth 96 stamped out of the side edges thereof.
  • Side plate 88 has a forwardly extending, cantilevered spring contact arm 98 formed with an inwardly bowed contact surface 98a.
  • a support bar 100 is formed at the distal end of spring arm 98.
  • side plate 88 is stamped with teeth 102 in the side edges thereof.
  • center terminal 34 is inserted into first passage 54 through rear face 0 of housing 32.
  • the center terminal is inserted until cylindrical mating portion 74 extends forwardly toward the front mating face of the housing and into receptacle 46 as seen in Figure 7.
  • angled barb 82 FIGs. 5 and 7 snaps into engagement with retaining shoulder or surface 70 (Fig. 6) within passage 54 of the housing.
  • Terminating portion 76 moves into the elongated opening 48 in top face 42 of the housing as seen in Figure 4.
  • the terminating portion projects upwardly or outwardly of the opening, as shown, for connection, as by soldering, to an appropriate circuit trace on a printed circuit board (not shown).
  • center terminal 34 when center terminal 34 is fully inserted into passage 54, holding wings 80a (Fig. 5) abut against abutting shoulders 62 of the housing at opposite sides of elongated opening 48, as plate section 80 ridges into holding grooves 60 at opposite sides of the elongated opening.
  • Bearing projection 84 bears against a wall or surface of connecting slot 58. All of these interengaging components between the center terminal and the housing also ensure stabilization of the terminal, including terminating portion 76, to stabilize the current through the center terminal.
  • Auxiliary terminal 36 is inserted into passage 56 in housing 32 through rear face 40 of the housing.
  • bottom plate 86 of the terminal enters lower portion 72 of the passage and terminating portion 90 enters elongated opening 70 in the top face 42 of the housing whereby the terminating portion or solder tail 90 projects upwardly out of the opening as shown in Figure 4, for connection, as by soldering to an appropriate circuit trace on the printed circuit board.
  • spring contact arm 98 is exposed within elongated opening 52 in side face 44 of a housing. Support arm 100 abuts against internal ledges 104 of the housing.
  • FIG. 8 shows a mating connecting device 106 inserted into receptacle 46 of housing 32 of coaxial connector 30.
  • the mating connecting device has a socket 108 for receiving cylindrical mating portion 74 of center terminal 34.
  • the mating connecting device has an outer cylindrical surface 110 which engages spring contact portion 92 of auxiliary terminal 36.
  • contact surface 98a (Fig. 5) of cantilevered spring contact arm 98 also engages outer surface 110 of the mating connecting device.
  • a positive electrode will be provided within socket 108 for engaging mating portion 74 of center terminal 34, and negative electrode means are provided on outer surface 110 of the mating connecting device for engaging spring contact portion 92 and contact surface 98a of the auxiliary terminal.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un connecteur électrique coaxial qui comprend un corps diélectrique présentant une face avant d'assemblage et une face arrière. Un premier passage central de réception de borne s'étend entre les faces, ainsi qu'au moins un second passage de réception de borne auxiliaire. Au moins une borne auxiliaire est reçue dans le second passage. Une borne centrale, reçue dans le premier passage, comprend une partie d'assemblage allongée qui dépasse en direction de la face d'assemblage du corps et définit un axe central. La partie d'assemblage allongée présente une extrémité d'assemblage avant et une extrémité arrière. Une partie terminale est espacée radialement de la partie d'assemblage. Une partie raccord réunit la partie d'assemblage et la partie terminale. La partie raccord comprend un élément de stabilisation qui s'étend vers l'arrière, le long de l'axe, depuis l'extrémité arrière de la partie d'assemblage. L'élément de stabilisation appuie contre une partie du premier passage du corps pour stabiliser la partie d'assemblage allongée de la borne centrale.
PCT/US2004/011526 2003-04-18 2004-04-15 Connecteur electrique coaxial WO2004095652A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/545,065 US7114989B2 (en) 2003-04-18 2004-04-15 Coaxial electrical connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU032565097U CN2615899Y (zh) 2003-04-18 2003-04-18 电源连接器
CN03256509.7 2003-04-18

Publications (2)

Publication Number Publication Date
WO2004095652A1 true WO2004095652A1 (fr) 2004-11-04
WO2004095652A8 WO2004095652A8 (fr) 2005-02-10

Family

ID=33304445

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/011526 WO2004095652A1 (fr) 2003-04-18 2004-04-15 Connecteur electrique coaxial

Country Status (3)

Country Link
KR (1) KR20050123143A (fr)
CN (1) CN2615899Y (fr)
WO (1) WO2004095652A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102801050B (zh) * 2011-05-23 2015-09-09 富士康(昆山)电脑接插件有限公司 线缆连接器
CN102354836B (zh) * 2011-08-04 2013-05-15 实盈电子(东莞)有限公司 电源插座连接器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882210A (en) * 1995-09-28 1999-03-16 Siemens Aktiengesellschaft Device for connecting a coaxial connector to a printed circuit board by surface mounting
DE19851790A1 (de) * 1998-11-10 2000-05-31 Ims Connector Systems Gmbh SMD-Koaxialsteckverbinder
US20020039851A1 (en) * 2000-09-29 2002-04-04 Mou Zhiquan Anti-spark power jack with switch contacts therein
US6551115B1 (en) * 2001-12-26 2003-04-22 Hon Hai Precision Ind. Co., Ltd. Power jack with central pin

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882210A (en) * 1995-09-28 1999-03-16 Siemens Aktiengesellschaft Device for connecting a coaxial connector to a printed circuit board by surface mounting
DE19851790A1 (de) * 1998-11-10 2000-05-31 Ims Connector Systems Gmbh SMD-Koaxialsteckverbinder
US20020039851A1 (en) * 2000-09-29 2002-04-04 Mou Zhiquan Anti-spark power jack with switch contacts therein
US6551115B1 (en) * 2001-12-26 2003-04-22 Hon Hai Precision Ind. Co., Ltd. Power jack with central pin

Also Published As

Publication number Publication date
KR20050123143A (ko) 2005-12-29
WO2004095652A8 (fr) 2005-02-10
CN2615899Y (zh) 2004-05-12

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