Electrical connectors – With coupling movement-actuating means or retaining means in... – Including compound movement of coupling part
Reexamination Certificate
2003-05-13
2004-02-24
Vu, Hien (Department: 2833)
Electrical connectors
With coupling movement-actuating means or retaining means in...
Including compound movement of coupling part
C439S259000
Reexamination Certificate
active
06695635
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a zero insertion/extraction force integrated circuit socket, and more particularly to a driving structure of the socket for driving a slide cover to slide along the insulating socket.
2. Description of the Prior Art
Zero insertion/extraction force integrated circuit socket is for an integrated circuit such as a central processor unit (CPU) to insert therein with nearly zero force. After inserted, the CPU is electrically connected with the main board of a computer. When it is necessary to upgrade the computer, the CPU is extracted from the socket with nearly zero force to replace the CPU with an upgraded product.
In order to achieve the object of zero insertion/extraction force, a slide cover is added to the bottommost insulating socket. The slide cover is slidable along the insulating socket. The multiple insertion pins of the CPU are passed through the slide cover and then inserted into the insulating socket. However, after inserted, the insertion pins do not directly contact with the multiple conductive members inlaid in the insulating socket so that the insertion force is nearly zero. Then, by means of a driving structure disposed between the insulating socket and the slide cover, the slide cover is driven and slided to simultaneously make the insertion pins of the CPU slide into the contact sections of the conductive members and respectively electrically contact with the conducting members.
When extracting the CPU, the driving structure is operated to force the slide cover to slide in a reverse direction, whereby the insertion pins of the CPU are simultaneously detached from the conductive members. Thereafter, the CPU can be easily extracted. It is known from the above that the driving structure plays a very important role in the operation.
There are various types of driving structures. The earliest and most typical driving structure is disclosed in U.S. Pat. Nos. 5,387,121 and 5,456,613. An U-shaped driving member is clamped on one side of the zero insertion/extraction force (zero insertion force) integrated circuit socket. A driving section of the U-shaped driving member is positioned between the insulating socket and the slide cover and is manufactured as a cam. An operating section of the L-shaped driving member is exposed to outer side of the socket. The operating section is pinched by fingers to turn the driving section for driving the slide cover to slide.
The L-shaped driving member of the above driving structure has some shortcomings as follows:
1. The driving cam of the driving section of the L-shaped driving member must be large enough to drive the slide cover to slide through a sufficient travel. Under such circumstance, the cross-section of the driving section will be too large. As a result, the slide cover will protrude to thicken the socket.
2. The driving cam of the driving section of the L-shaped driving member is too large so that the gradient of the cross-section of the entire driving section will be too large. As a result, the structural strength of the driving section will be too weak and likely to break.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a zero insertion/extraction force integrated circuit socket. In the prior art, the driving cam of the driving section of the L-shaped driving member must be large enough to drive the slide cover to slide through a sufficient travel. Under such circumstance, the cross-section of the driving section will be too large. As a result, the slide cover will protrude to thicken the socket. The above problem existing in the prior art is solved by the present invention.
It is a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. In the prior art, the driving cam of the driving section of the L-shaped driving member is too large so that the gradient of the cross-section of the entire driving section will be too large. As a result, the structural strength of the driving section will be too weak and likely to break. The above problem existing in the prior art is solved by the present invention.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. The first pivot arch shaft section, first driving cam, second pivot arch shaft section, second driving cam and the third driving cam are formed on the driving section of the driving member stage by stage. Therefore, each cross-section of the driving section can be smaller and the cross-sectional area of each stage can be larger to enhance the torque strength.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. The first pivot arch shaft section, second pivot arch shaft section and the third driving cam are axially stage by stage formed on the driving section of the driving member and spaced from each other. The cross-sections of the first pivot arch shaft section, second pivot arch shaft section and the third driving cam are not connected with each other. Therefore, each cross-section of the driving section can be smaller and the cross-sectional area of each stage can be larger to enhance the torque strength.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. The first pivot arch recess and second pivot arch recess of the insulating socket cooperate with the first receiving dent and second receiving dent of the slide cover to together support the first pivot arch shaft section, second pivot arch shaft section and the first arched face of the driving section of the driving member. Therefore, the first pivot arch shaft section and second pivot arch shaft section can be stably pivotally disposed in the insulating socket and smoothly rotated.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. A reinforcing section is disposed at the opening of the first receiving section of the insulating socket for enhancing the strength of the opening of the first receiving section.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. The portion of the driving section near the operating section, that is, the position of the reinforcing section aligned with the opening of the first receiving section of the insulating socket is formed with corresponding first recess and second recess for avoiding the reinforcing section. The other side of the driving section is formed with reinforcing section corresponding to the first and second recesses. The reinforcing section is bridged between the first and second recesses, whereby the cross-sectional area of the driving section is larger to enhance the torque strength.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. A corner of the insulating socket is formed with a latch tenon for slidably latching with the slide cover and preventing the driving member from being over-turned.
It is still a further object of the present invention to provide the above zero insertion/extraction force integrated circuit socket. A corner of the insulating socket is formed with a locating projecting section and resilient latch section for stopping the operating section of the driving member, whereby when the operating section is rotated to an erect state, the operating section is latched and located without falling down.
According to the above objects, the zero insertion/extraction force integrated circuit socket of the present invention includes an insulating socket, multiple conductive members, a slide cover and a driving member.
The insulating socket has a first slide connecting face, multiple insertion holes and a first receiving section.
The first slide connecting face is positioned on
Rosenberg , Klein & Lee
Vu Hien
LandOfFree
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