Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Distinct contact secured to panel circuit
Reexamination Certificate
2001-03-27
2002-05-28
Paumen, Gary (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Distinct contact secured to panel circuit
C439S682000, C439S181000, C439S752500
Reexamination Certificate
active
06394818
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a power connector, and particularly to a power connector having improved contacts.
2. Description of Prior Art
Commonly, an electronic power connector system is used in circuit board or backplane interconnection systems and comprises a power plug connector and a power receptacle connector mated with the plug connector. The power plug connector comprises a plurality of logic or signal plug contacts and power plug contacts to mate with respective signal receptacle contacts and power receptacle contacts of the receptacle connector, respectively, for transmitting logic signals and power between two circuit boards or backplanes. Such power connectors are disclosed in U.S. Pat. No. 5,158,471 and EP No. 0951102 A2. Referring to
FIG. 6
, a one-piece plug contact
60
disclosed in the EP No. 0951102 A2 for use in a power connector comprises a pair of contact plates
62
and a pair of bridging portions
64
linking the two contact plates
62
together. Each contact plate
62
comprises a pair of contact fingers
66
forming a converging extending, arcuate contact section
67
gold plated for conductively contacting against the receptacle contact. Additionally, a plurality of posts
68
depend from a bottom edge of the contact plate
62
for soldering to a circuit board (not shown). However, the plated layers on the contact sections
67
are easily broken off during hot plugging into the receptacle connector since they are relative thin, thereby adversely affecting the conductive connection between the plug and receptacle contacts. Additionally, the plug contact
60
is formed by being stamped from a conductive plate and then being folded along the bridging portions
64
thereof, therefore the manufacturing process thereof is relatively complicated.
Hence, an electronic power connector having improved plug contacts is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
A first object of the present invention is to provide an electrical power connector having improved conductive contacts which provide improved electrical interconnection with receptacle contacts of a receptacle connector.
A second object of the present invention is to provide an electrical power connector having improved conductive contacts which are easily manufactured and low in cost.
An electrical power connector for use in a circuit board or backplane system comprises an insulative housing defining a chamber and an opening opened in a front wall thereof and communicating with the chamber, and a pair of separated conductive contacts received in the chamber. A pair of protrusions extend from opposite sides of the front wall into the opening. Each contact includes a contact plate, a pair of longer contact fingers and a pair of shorter contact fingers between the longer contact fingers both extending from a front side of the contact plate and form longer and shorter contact sections, respectively. Outside surfaces of the contact sections are gold plated for conductively contacting against a corresponding receptacle contact of a receptacle connector. The contact plate forms a blocking tab extending at a right angle from a rear edge thereof in a direction opposite to the plated outside surfaces for insertion between the protrusions of the housing.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 5158471 (1992-10-01), Fedder et al.
patent: 5342220 (1994-08-01), Kodama
patent: 5564952 (1996-10-01), Davis
patent: 5951331 (1999-09-01), Li-Ming et al.
patent: 6135790 (2000-10-01), Huang et al.
patent: 6217356 (2001-04-01), Davis et al.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Paumen Gary
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