Plug connector

• US 7,273,381 B2
• Filed: 10/25/2006
• Issued: 09/25/2007
• Est. Priority Date: 10/27/2005
• Status: Active Grant

• Current Assignee: Yamaichi Electronics Company Limited
• Original Assignee: Yamaichi Electronics Company Limited
• Inventors: Ito, Toshiyasu
• Primary Examiner(s): Patel; Tulsidas C.
• Assistant Examiner(s): Imas; Vladimir
• Application Number:
  US11/585,823
• Publication Number:
  US 20070099514A1
• Time in Patent Office: 335 Days
• Field of Search: 439/79, 439/660, 439/59, 439/637
• US Class Current: 439/79
• CPC Class Codes: H01R 12/58 terminals for insertion into holes
• CPC Class Codes: H01R 12/712 co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit H01R12/72 takes precedence
• CPC Class Codes: H01R 12/721 cooperating directly with the edge of the rigid printed circuits

Abstract

A plug connector for electrically connecting a printed wiring board with a card-edge connector includes a first connector-contact arrangement and a second connector-contact arrangement. The first connector-contact arrangement is inserted to the card-edge connector and includes a first blade with a front surface having a recessed surface partly recessed therefrom and a plurality of first contact components arranged parallel one with another in the first blade. The second connector-contact arrangement is inserted to a card-edge connector and includes a second blade with a front surface having a recessed surface partly recessed therefrom and a plurality of second contact components arranged parallel one with another in the second blade. When a plug connector is formed by assembling the first and second connector-contact arrangements together, the first connector-contact arrangement is electrically connected with one printed wiring board through press-contact or push-contact while the second connector-contact arrangement is electrically connected therewith through clamp-contact.

Claims

1. A plug connector, for electrically connecting a printed wiring board with a card-edge connector, comprising:

a first connector-contact arrangement that is inserted to a card-edge connector, and that includes a first blade with a front surface having a recessed surface partly recessed therefrom and a plurality of first contact components arranged parallel one with another in the first blade;

a second connector-contact arrangement that is inserted to a card-edge connector, and that includes a second blade with a front surface having a recessed surface partly recessed therefrom and a plurality of second contact components arranged parallel one with another in the second blade;

wherein, when a plug connector is formed by assembling the first and second connector-contact arrangements together, the first connector-contact arrangement is electrically connected with one printed wiring board through press-contact or push-contact while the second connector-contact arrangement is electrically connected therewith through clamp-contact.

2. A plug connector as claimed in claim 1, wherein, in the front-end surface of the first blade, the width of the front-end surface in which the recessed surface is not formed and that of the recessed surface are configured such that the number of the contact components corresponding to the front-end surface in which the recessed surface is not formed and the number of the contact components corresponding to the recessed surface are equal to each other.

3. A plug connector as claimed in claim 1, wherein the first connector-contact arrangement further includes a frame, the first blade being formed as a part of the frame, the first contact components being arranged parallel one with another in the frame,

the second connector-contact arrangement further including a case, the second blade being formed as a part of the case, the second contact components being arranged parallel one with another in the case.

4. A plug connector as claimed in claim 3, wherein the frame, structuring the first connector-contact arrangement, includes right-and-left first sidewalls, right-and-left second sidewalls respectively provided upper front of the right-and-left first sidewalls through steps, front and bottom walls connecting between the right-and-left second sidewalls, and the first blade formed protruding frontward from the front wall,

the first blade being formed with a plurality of slits, the plurality of slits being formed through the front wall and communicating with a space formed by the right-and-left second sidewalls, the front wall and the bottom wall of the frame,

the case, structuring the second connector-contact arrangement, including a top wall, a bottom wall, right-and-left sidewalls, a front wall closing frontward a space formed by the top wall, the bottom wall and the right-and-left sidewalls, and the second blade formed protruding frontward from the front wall,

the second blade being formed with a plurality of fixing grooves paired in upper and lower surfaces thereof, the fixing grooves being in communication with the space of the case.

5. A plug connector as claimed in claim 4, wherein the first contact component of the first connector-contact arrangement includes two conductors, a projection piece that is formed of an insulating material and that external terminals as tips of the two conductors to be contacted with a card-edge connector are arranged in upper and lower surfaces thereof, first and second fixing portions each burying the two conductors in an insulating material, a non-fixing portion provided between the first and second fixing portions and exposing the two conductors, and an elastically-deformable contact portion to be press-contacted with an external terminal provided in a surface of the printed wiring board,

the projection piece of the first contact component being arranged in the slit of the first blade of the frame, the first fixing portion of the first contact component being arranged in a space formed by the right-and-left second sidewalls, the front wall and the bottom wall of the frame, the second fixing portion of the first contact component being arranged in the frame between the right-and-left first sidewalls, thereby forming the first connector-contact arrangement,

the second contact component of the second connector-contact arrangement being a conductor including an external terminal to contact with the card-edge connector, a fixing portion to be pressed in a case and an elastically-deformable contact portion to contact with the printed wiring board,

a plurality of the conductors being arranged parallel one with another and paired vertically in the case thereby forming the second connector-contact arrangement.

6. A plug connector as claimed in claim 5, wherein a cavity is formed in the projection piece of the first contact component of the first connector-contact arrangement between the conductors arranged in the upper and lower surfaces thereof,

the second blade of the second connector-contact arrangement being formed with a cavity between the conductors arranged upper and lower.

7. A plug connector as claimed in claim 1, wherein the first connector-contact arrangement has a terminal component including a case member having a front wall, a top wall, a bottom wall, right-and-left sidewalls and a first blade, a plurality of first contact components and a cover member, and a connecting member including a connecting wiring board, a contact-receiving member and a plurality of connecting contacts,

the first blade being formed protruding frontward from the front wall structuring the case member,

the first blade being formed, in upper and lower surfaces thereof, with a plurality of fixing grooves paired vertically and parallel one with another each of which communicates with a space formed by the front wall, the top wall, the bottom wall and the right-and-left sidewalls of the case member,

the first contact component being a conductor including an external terminal to contact with a card-edge connector, a fixing portion to be pressed in the case member, and an elastically-deformable contact portion structuring the connecting member and to contact with the connecting wiring board,

the first contact components being arranged parallel one with another in the case member,

the contact-receiving member being formed with a plurality of contact-receiving chambers to receive therein the connection contacts in a manner vertically penetrating the contact-receiving member,

the connecting contact being a conductor including an elastically-deformable upper contact portion to contact with an external terminal of the connecting wiring board, a fixing portion to be pressed in a press-in groove of a fixing protuberance provided in the contact-receiving chamber, and an elastically-deformable lower contact portion to contact with an external terminal of the printed wiring board,

the connecting wiring board being arranged extending frontward furthermore from an upper region of the contact-receiving chamber.

8. A plug connector as claimed in claim 7, wherein the second connector-contact arrangement has a case and second contact components,

the case including a top wall, a bottom wall, right-and-left sidewalls, a front wall closing frontward a space formed by the top wall, the bottom wall and right-and-left sidewalls, and the second blade formed protruding frontward from the front wall,

the second blade being formed with a plurality of fixing grooves pared in upper and lower surfaces thereof, the fixing grooves communicating with the space of the case,

the second contact component being a conductor including an external terminal to contact with a card-edge connector, a fixing portion pressed in the case, and an elastically-deformable contact portion to contact with the printed wiring board,

the conductors in plurality being arranged parallel one with another in the case and paired vertically thereby forming the second connector-contact arrangement.

9. A plug connector as claimed in claim 8, wherein a cavity is formed between the conductors arranged upper and lower of the first blade of the first connector-contact arrangement,

a cavity being formed also between the conductors arranged upper and lower of the second blade of the second connector-contact arrangement.

10. A plug connector as claimed in claim 1, wherein two of the first connector-contact arrangements are oppositely arranged in a manner sandwiching one of the printed wiring board and one of the second connector-contact arrangement, thus having contact arrangement in three levels.

11. A plug connector as claimed in claim 1, wherein one of the first connector-contact arrangement is arranged over one of the printed wiring board and one of the second connector-contact arrangement to thereby forming a plug connector having contact arrangement in two levels, two of the plug connectors being connected vertically through a connecting member thus having contact arrangements in four levels.