Electrical connectors – With coupling separator – Nonconducting pusher
Reexamination Certificate
1999-12-16
2001-05-08
Paumen, Gary F. (Department: 2833)
Electrical connectors
With coupling separator
Nonconducting pusher
C439S485000
Reexamination Certificate
active
06227887
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of The Invention
The invention relates to card edge connectors, and particularly to the card edge connectors each with ejectors at two opposite ends and commonly with one another in a side-by-side dense arrangement mounted on a printed circuit board.
2. The Prior Art
U.S. Pat. No. 5,634,803 discloses a DIMM (Dual In-line Memory Module) connector which is essentially a card edge connector with ejectors at two opposite ends. The ejector is rotatably mounted to the housing with a locking on the upper portion for latchably engaged within a notch in a side portion of the inserted daughter board. In application, multiple DIMMs are used on a limited area of the single mother board, thus requiring side-by-side dense arrangement thereof. Also, recently because the daughter board may be loaded with more heavy electronic components thereon and is required to endure more server condition when testing, the daughter board is modified to form two notches in each side portion thereof to cooperate with the two corresponding upper and lower lockers formed on each ejector for double retention between the DIMM and the daughter board and resisting the server vibration situation, thus assuring reliability of the whole assembly.
Anyhow, the heat generated by the daughter boards and accumulated around the side by side densely arranged DIMMs may be a problem for signal transmission. Rather than using an fan directing to the DIMMS, an economic design in the DIMM connector is desired to somewhat eliminate heat problem.
SUMMARY OF THE INVENTION
According to an aspect of the invention, a card edge connector including an insulative housing defining a central slot therein in a longitudinal direction with a plurality of contacts by two sides of the slot. A pair of towers are positioned at two opposite ends of the housing. An ejector is rotatably received within each tower. The ejector includes a main body, with a kicker at the bottom and a locker at the top. A U-shaped retention wall is formed on each tower around the ejector. The retention wall includes an end wall bridging a pair of opposite side walls. Each said wall defining a recess extending therethrough in a lateral direction of the housing. A daughter board defines upper and lower notches in each side portion. The recess is aligned with the lower notch when the daughter board is fully embedded within the housing so as to facilitating ventilation thereof when a plurality of connectors and their associated daughter board are densely side by side positioned on a common mother board.
REFERENCES:
patent: 5634803 (1997-06-01), Cheng et al.
patent: 5672069 (1997-09-01), Cheng et al.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Paumen Gary F.
LandOfFree
Card edge connector with ejector thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Card edge connector with ejector thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Card edge connector with ejector thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2483631