Electrical connectors – With indicating or identifying provision – Connection indicating provision
Reexamination Certificate
2001-04-27
2001-12-11
Sircus, Brian (Department: 2839)
Electrical connectors
With indicating or identifying provision
Connection indicating provision
C439S620040, C439S676000
Reexamination Certificate
active
06328595
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to electric connectors, and more specifically, to such an electric connector, in which the circuit board is horizontally supported on the base and an upright support of the terminal to minimize space occupation.
Following fast development of computer technology, advanced desktop and notebook computers have been continuously developed. In consequence, a variety of electric connectors have been disclosed for use with different computers and the telephone line for connection to the Internet to obtain data. Currently, RJ45 connectors are commonly used for enabling a computer to be connected to the Internet. A RJ45 connector may be provided with indicator LEDs (light emitting diodes) for signal transmission indication. However, the operation of LEDs in a RJ45 connector produces high-frequency electric waves that interfere with operation of nearby electric/electronic apparatus. Further, external noises may interfere with the transmission of signal in conventional RJ45 connectors. In order to protect against EMI (electromagnetic interference), a computer connector is generally covered with a metal shied and installed with a filter module. A capacitor may be provided in the filter module to protect against surge. An electric connector with EMI protective circuit means is expensive. Taiwan Patent Publication No. 347153, issued to the present inventor on Dec. 1, 1998, indicates an electronic socket. This structure of electronic socket, as shown in
FIGS. 7 and 8
, is comprised of a terminal holder assembly formed of a front terminal holder unit B and a rear terminal holder unit D, an electrically insulative housing A, a metal shield E, terminals B
1
and D
1
, and a vertical circuit board C. The terminal holder assembly is inserted into the electrically insulative housing A. The terminals B
1
and D
1
of the front terminal holder unit B and rear terminal unit D of the terminal holder assembly are respectively soldered to the vertical circuit board C. The vertical circuit board C comprises a filter module C
1
. This design effectively eliminates the interference of external electromagnetic waves. However, because the circuit board is installed in vertical, much vertical installation space is required, and therefore the vertical size of this design of electric socket cannot be minimized to fit thin-size notebook computers.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide an electric connector, which eliminates the aforesaid drawbacks. It is the main object of the present invention to provide an electric connector, which requires less vertical installation space. It is another object of the present invention to provide an electric connector, which is easy to assemble/disassemble. According to one aspect of the present invention, the electric connector electric connector comprises an electric circuit assembly unit mounted in an electrically insulative housing, and a metal shield covered on the electrically insulative housing, the electric circuit assembly comprising a terminal holder mounted in the electrically insulative housing, and a circuit board supported on the terminal holder, the terminal holder comprising a base, which supports the circuit board, a front extension board and a rear extension board respectively extended from front and rear sides of the base in reversed directions, the rear extension board having a plurality of terminal slots, and an upright support adapted to support the circuit board on the base, and a plurality of terminals respectively mounted in the front extension board and base of the terminal holder and electrically connected to the circuit board, the circuit board having a plurality of terminals respectively inserted through respective terminal slots of the terminal holder for connection to an external circuit board. According to another aspect of the present invention, the electrically insulative housing is comprised of an outer casing and an inner casing detachably mounted in the outer casing. According to still another aspect of the present invention, the circuit board comprises capacitor and filter module means to protect the internal circuit against external noises.
REFERENCES:
patent: 5704802 (1998-01-01), Loudermilk
patent: 6102741 (2000-08-01), Boutros et al.
patent: 6132260 (2000-10-01), Wu
patent: 6234847 (2001-05-01), Chang
Bacon & Thomas PLLC
Nguyen Son V.
Sircus Brian
Speed Tech Corp.
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