Electrical connectors – Electromagnetic or electrostatic shield – Shielding individually surrounding or interposed between...
Reexamination Certificate
1999-10-21
2001-05-22
Vu, Hien (Department: 2833)
Electrical connectors
Electromagnetic or electrostatic shield
Shielding individually surrounding or interposed between...
C439S095000
Reexamination Certificate
active
06234840
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to shield connectors for connecting shield cables of electronic equipment mounted on a vehicle or the like.
2. Description of the Related Art
Japanese UM patent No. 2542233 discloses a shield connector of this type. This connector socket comprises a socket housing with a terminal mounting section having a lance portion therein, a terminal unit mounted in the terminal mounting section for engagement with the lance portion, and a shield cover mounted on the socket housing.
However, the shield connector consists of three components; the socket housing, the terminal unit, and the shield cover. Especially, the terminal unit is mounted in the terminal mounting section for engagement with the lance portion which makes the socket housing bulky.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the invention to provide a shield connector having no lance portion which enables to not only provide a small connector housing but also facilitate mounting the shield member to the connector body, thereby improving the assembling process.
It is another object of the invention to provide a shield connector which assures firm connection of not only the terminal unit but also the connectors.
According to one aspect of the invention there is provided a shield connector comprising a connector housing having a rear face and a front plugging section with an end face; at least one contact attached to said end face; first and second shield insertion slots provided in said rear face; a shield member having first and second shields and a linking piece for temporarily connecting said first and second shields, wherein said first and second shields are put into said first and second shield insertion slots, respectively, and said linking piece is cut off to separate said first and second shields thereby mounting said first and second shields in said connector housing.
At least one contact is provided on the end face of the plugging section and the first and second shields are put into the first and second shield insertion slots and, then, the linking piece is cut off to separate the first and second shields and mount the in the connector housing forming a shield connector.
Consequently, the number of parts is reduced and no lance is needed making possible not only minimizing the connector housing but also facilitating assembling of the shields into the connector housing.
According to another aspect of the invention, said first and second shield insertion slots have a C-shape in each half of said rear face, said first and second shield insertion being of line symmetry, said first and second shield insertion slots have at least one shield piece insertion aperture and at least one piece insertion slot in communication with said shield piece insertion aperture, and Said first and second shields have a C-shaped form and at least one front shield piece with a contact point and a rear shield terminal.
The first and second shields are put into the first and second shield insertion slots and shield pieces are put into the piece insertion slots, and the linking piece is cut off to separate and mount the first and second shields in the connector housing.
According to still another aspect of the invention there is provided a shield connector comprising a connector housing having a plugging section with an end face having a contact arranging portion to which at least one contact attached and at least one shield insertion slot provided a rear face of said connector housing for surrounding said contact; a first joint provided between said shield insertion slots and at least one second joint for connecting said end face to said connector housing; said first and second joint extend from said end face to said rear face and from said end face halfway to said rear face, wherein said first and second shields are inserted into said shield insertion slots to mount in said connector housing such that said first and second shields shield said contact.
At least one contact is provided on the end face of the plugging section, and the shields are put into the shield insertion slots to mount the shields in the connector housing, forming a shield connector.
Consequently, the number of parts is reduced and no lance is needed, making possible not only minimizing the connector housing but also facilitating mounting the shields in the connector housing.
The shield jacket of a mating connector shields a portion of the contact corresponding to the plugging section and the shields shield the other portion of the contact corresponding to the contact arranging section, thereby minimizing the connector housing in the plugging direction.
According to yet another aspect of the invention there is provided a shield connector comprising a connector body including a connector housing having a front terminal unit mounting section and a rear cable insertion section; a terminal unit including an insulating block with at least one contact connected to a core wire of a cable, a shield jacket for receiving said insulating block, a shield cover provided over said insulating block, said shield jacket having a bent shield section for engagement with said shield cover and said shield jacket having a crimping portion deformed on a shield of said cable; said terminal unit being put into said terminal unit mounting section from a side of said cable insertion section for engagement, said shield cable being put into said cable insertion section; a retainer provided over said cable insertion section for engagement with said connector housing to hold said terminal unit from back.
Upon connector plugging, the terminal unit is held by the retainer from back so that it is not pushed out of the connector housing by the contact of a mating connector, thus assuring connection between the connectors.
According to another aspect of the invention, said shield cover and said retainer are provided with a semi-circular flange, respectively, to surround said core wire of said shield cable.
The core wire of a shield cable is surrounded by the flanges of the cover and the retainer, thus providing improved shield effects.
REFERENCES:
patent: 4650270 (1987-03-01), Tajima
patent: 4936795 (1990-06-01), Kawai et al.
patent: 4981447 (1991-01-01), Ichitsubo
patent: 4983127 (1991-01-01), Kawai et al.
patent: 5222909 (1993-06-01), Nomma et al.
patent: 5791939 (1998-08-01), Tamigawa
patent: 5797770 (1998-08-01), Whiteman, Jr. et al.
patent: 6045390 (2000-04-01), Metz et al.
patent: 0371218 (1990-06-01), None
patent: 0608813 (1994-08-01), None
patent: 0608863 (1994-08-01), None
patent: 0827238 (1998-03-01), None
patent: 2542233 (1997-04-01), None
Nakata Naohisa
Shishikura Tomokazu
Hirose Electric Co. Ltd.
Kanesaka & Takeuchi
Vu Hien
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