JP2003229211A - Zero insertion force receptacle connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a zero insertion force receptacle connector equipped with a kind of locking device which gives an alarm before its control stick is rotated to an open position and can be firmly fixed to that position. <P>SOLUTION: The zero insertion force receptacle connector includes a base, a cover fitted to the base, a drive member, a plurality of conductive terminals contained in the base, and the locking device. The base is provided with a convex pedestal extended outward from its rear end part. The drive mechanism includes a drive lever and a control stick connected to the drive lever, capable of moving relatively to the base driving the cover. The locking device is set at a front end of the convex pedestal and includes a connecting part extended frontward from the bottom end part of the pedestal, an elastic arm extended from the front end of the connecting part, and a connecting part bent and extended from the tip end part of the elastic arm. The elastic arm comes in contact with the control stick before the latter is rotated to the open position. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a type of zero insertion force receptacle connector (Zero Insertion F).
ore socket, ZIF socket), and more particularly to a zero insertion force receptacle connector for preventing damage to the main body due to over-rotation of the control stick.

[0002]

2. Description of the Related Art A low profile zero insertion force receptacle connector has been widely applied to electrical connection between a central processing unit (CPU) and a circuit board. As shown in FIG. 6, the conventional low-profile zero insertion force receptacle connector 6 includes a base 7, a cover 8, a plurality of conductive terminals 60, and a driving member 9. The base 7 includes a rectangular main body 71 and a guide portion 72 provided at an end of the rectangular main body 71. A plurality of accommodation holes 73 for accommodating the conductive terminals 60 are provided on the rectangular main body 71, and the guide portion 72 has the driving member 9 therein.
Lower contact portion 74 and guide portion 72 for preventing excessive rotation of the
A convex base 75 extending outward from the right end of the. The cover 8 is assembled to the base 7 and includes a cover plate 81 and a cover portion 82 at the rear end of the cover plate 81. The cover plate 81 is provided with a plurality of through holes 83 corresponding to the base 7 and vertically aligned with the plurality of storage holes 73 of the rectangular main body 71. Therefore, a conductive pin (not shown) corresponding to the central processing unit is housed. An upper operation portion 84 is provided in the middle of the covering portion 82. The drive member 9 formed in a substantially L shape includes a control rod 91 having a straight rod shape, and a drive arm 92 formed substantially perpendicular to the control rod 91. The drive arm 92 is
It is rotatably accommodated between the lower bearing portion 74 and the covering portion 82,
The driving arm 92 includes a bending arm 93 that is bent forward from the center thereof, and since the bending arm 93 is rotated in the upper operating portion 84, the cover 8 and the central processing unit corresponding thereto are driven to move relative to the base 7. Can be moved.
Therefore, the conductive pin of the central processing unit and the conductive terminal 60 can be electrically contacted or electrically disconnected.

[0003]

As shown in FIG. 7, when the control stick 91 is rotated from the closed position to the open position, the control stick 91 directly abuts on the convex base 75, so that the control stick 91 is rotated. Is over-rotated, the control stick 91 and the convex stand 7
5 may collide with each other and be destroyed. USP 5,722,84 filed by the same applicant as the present invention
8 (hereinafter referred to as USP'848) discloses a fixing device installed between a kind of convex base and a control stick (USP'848).
7 and 7A), but the design still suffers from the direct contact of the control stick with the pedestal. Therefore, it is considered necessary to improve the design further.

An object of the present invention is to provide a zero insertion force receptacle connector which mainly comprises a kind of engagement device, which can display a warning before the control stick is rotated to the open position. .

Another object of the present invention is to provide a type of engagement device which secures the control stick in the open position.

[0006]

The zero insertion force receptacle connector of the present invention is for fixing a central processing unit having a plurality of conductive terminals, and includes a base, a cover,
It includes a drive member, a plurality of conductive terminals and an engagement device. The base includes a rectangular main body and a guide portion installed at a rear end portion of the rectangular main body, and the rectangular main body is provided with a plurality of accommodation holes for accommodating corresponding conductive terminals. The guide portion includes a convex base extending outward from one lateral end thereof. The cover is mounted on the base, is movable relative to the base, and includes a cover plate and a covering portion installed at a rear end portion of the cover plate,
The plurality of through holes provided in the cover plate can accommodate the conductive pins of the central processing unit. The drive member is
A drive lever and a control stick extending vertically from the end of the drive lever are included, and the drive lever is housed between the guiding portion and the covering portion and can drive the cover to move on the base. The engaging device is installed at the front end of the convex base and has a connecting portion extending forward from the bottom end of the convex base, an elastic arm extending from the front end of the connecting portion, and a front end of the elastic arm. It includes a connecting portion that bends and extends. Before the control stick is rotated to the open position, the elastic arm is bent and deformed after being pressed by the projection of the control stick, so that a spring force is generated. When the control stick is rotated to the open position, the projections will engage the connection to secure the control stick in the open position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 3, a zero insertion force receptacle connector 1 of the present invention comprises a base 10 and a cover 2.
0, a driving member 30, and a plurality of conductive terminals 40.

The base 10 includes a rectangular main body 11 and a guiding portion 12 installed at a rear end portion thereof. The rectangular main body 11 may be provided with a plurality of accommodation holes 13 that vertically penetrate the base 10 and are spaced from each other to accommodate the conductive terminals 40. The guide portion 12 extends outward from the three lower bearing portions 14 that are spaced apart from each other, the lower operating portion 15 installed in the adjacent lower bearing portions 14, and the right side of the rear end portion thereof.
It includes a convex base 16 for preventing over-rotation of the driving member 30. The convex base 16 includes a rear convex portion 160 extending from the top end portion thereof in the front direction. The engaging device 50 is installed at the front end of the convex base 16, and has a connecting portion 51 extending forward from the bottom of the convex base 16, and an elastic arm 52 extending upward from the front end of the connecting portion 51. The elastic arm 52 includes a contact portion 53 that extends from the upper end of the elastic arm 52 and is bent forward. The front convex portion 54 extending rearward from the top end of the contact portion 53 is horizontally aligned with the rear convex portion 160.

The cover 20 includes a cover plate 21 and a covering portion 22 at the rear end thereof, and the cover plate 21 has a plurality of through holes 23 aligned with the storage holes 13 so as to correspond to the central processing. A conductive pin (not shown) of the device can be housed. Coating 22
Includes three upper bearing portions 24 installed laterally corresponding to the lower bearing portions 14 and an upper working portion 25 located between the upper bearing portions 24 adjacent to each other.

The substantially L-shaped drive member 30 includes a drive lever 3
1 and a control stick 32 extending vertically from one end of the drive lever 31. The drive lever 31 includes three pivots 33 that are spaced apart from each other and a drive shaft 34 that is located between the adjacent pivots 33, and the drive shaft 34 is rotatably provided between the guide portion 12 and the covering portion 22. Sandwiched between. The control stick 32 has a projection extending outwardly at a rear end portion thereof close to the drive lever 31.

As shown in FIG. 3, in the process of assembling, first, the drive lever 31 is assembled to the guide portion 12, and the pivot 33 is attached to the lower bearing portion 14 corresponding thereto.
After being housed inside, the cover 20 is attached to the base 10 so that the drive lever 31 can move the guide portion 12 and the covering portion 22.
Fixed between and.

As shown in FIGS. 4 and 5, the control stick 32
Is rotated from the closed position to the open position and before reaching the open position, the projection 35 of the control stick 32 first contacts the contact portion 53, and the elastic arm 52 at this time is pressed by the projection 35.
Further, it is bent backward to be deformed, and a spring force is generated. When the control stick 32 is continuously rotated and the protrusion 35 of the control stick 32 is pressed downward in the contact portion 53, the elastic arm 52 returns to the initial position. Before the control stick 32 reaches the open position, the control stick 32 is limited by the acting force between the contact portion 53 and the projection 35. Therefore, the control stick 32 should be provided as a warning when the control stick 32 tries to reach the open position. You can Therefore, the control stick 3
It is possible to prevent the drive member 30 and the base 10 from being damaged by the excessive rotation of 2. Further, in the control stick 32, even if the engaging device 50 is strongly pressed due to over-rotation, the front convex portion 54 located on the engaging device 50 contacts the rear convex portion 160 on the convex base 16. By making contact, the elastic arm 52 can be prevented from being excessively deformed. In addition, when the control stick 32 is in the open position, the projection 35 is pressed by the contact portion 53, and the control stick 32 is pushed.
Does not automatically slide to the closed position.

An obvious feature of the present invention is to provide an elastic arm 52 having a kind of beam type structure, and the elastic arm 5
When the control stick 2 pushes the projection 35 of the control stick 32 against each other, when the control stick 32 approaches the open position, the elastic force of the cushion effect is generated. In the case where the elastic arm 52 is excessively bent in the rearward direction and is deformed, the present invention provides a kind of rigid resistance between the convex base 16 and the engagement device 50, and forcibly prevents over-rotation of the control stick 32. be able to. Further, the control stick 32 is fixed to the open position by combining the projection 35 and the contact portion 53.

In general, the present invention meets the requirements for patent registration and should be applied and licensed by law. It should be noted that the above embodiment is merely a more preferable embodiment of the present invention and does not limit the scope of the claims of the present invention. Modifications or changes in details that can be made based on the technique of the present invention are all It shall belong to the claims of the invention.

[Brief description of drawings]

FIG. 1 is an exploded view of a zero insertion force receptacle connector of the present invention.

FIG. 2 is an enlarged three-dimensional exploded view of a zero insertion force receptacle connector engagement device of the present invention.

FIG. 3 is a three-dimensional combination view of the zero insertion force receptacle connector of the present invention.

FIG. 4 is an enlarged plan view of the engagement device of the present invention before it is pressed by the control stick and reaches the open position.

FIG. 5 is an enlarged plan view of the engagement device of the present invention when the control stick is in the open position.

FIG. 6 is an exploded view of a conventional zero insertion force receptacle connector.

7 is an enlarged plan view of the zero insertion force receptacle connector shown in FIG. 6 when the control stick is in the open position.

[Explanation of symbols]

10 base 11 Rectangular body 12 Guide 13 Storage hole 14 Lower part 15 Lower operation part 16 convex stand 160 Rear convex part 20 cover 21 cover plate 22 Cover 23 Through hole 24 Upper part 25 Upper operation part 30 Drive member 31 Drive lever 32 control stick 33 pivot 34 Drive shaft 35 Protrusion 40 conductive terminals 50 engagement device 51 Connection 52 Elastic Arm 53 Contact part 54 Front convex part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Zheng Asataka             No. 2 Free Street, Tucheng City, Taipei County, Taiwan F-term (reference) 5E021 FA05 FA16 FB03 FC38 HB01                       KA05                 5E023 AA04 AA22 BB01 BB11 BB17                       BB21 DD03 DD11 HH04

Claims (9)

[Claims] 1. A zero insertion force receptacle connector used for fixing to a central processing unit having a plurality of conductive terminals, the connector having a plurality of conductive terminals and a plurality of storage holes for storing corresponding conductive terminals. A rectangular body and a base provided with a guide portion including a convex base extending outward from one end portion in the lateral direction installed at the rear end portion of the rectangular body, and assembled on the base, A cover that is movable relative to the base and that includes a cover plate having a plurality of accommodation holes for accommodating the conductive pins of the central processing unit; and a covering portion, and between the guiding portion and the covering portion. A drive lever that is housed and that drives the cover so that it can move with respect to the base, a drive member that includes a control stick connected to this drive stick, and a front end of the convex base that is provided before the control stick reaches the open position. Pressed on Zero insertion force receptacle connector, characterized in that it comprises an engaging device for dress, a. 2. The zero insertion force receptacle connector according to claim 1, wherein the engagement device and the convex base are integrally formed. 3. The engagement device includes a connecting portion extending forward from a bottom end portion of a convex base, the elastic arm extending from the connecting portion to a front end portion, and a top end portion of the elastic arm. 2. The zero insertion force receptacle connector according to claim 1, wherein the connecting portion is obliquely extended in the front direction. 4. The zero insertion force receptacle connector according to claim 1, wherein the control stick of the drive member is provided with a protrusion extending outward from a rear end portion thereof. 5. The engagement device includes a front convex portion extending rearward from the top end of the contact portion, and is provided on a convex base,
2. The zero insertion force receptacle connector according to claim 1, wherein the rear convex portion extending from the top end portion in the forward direction is fitted to the front convex portion to prevent over-deformation of the elastic arm. 6. A zero insertion force receptacle connector used to secure to a central processing unit, the base, a cover assembled to the base and relatively movable, and a plurality of conductive terminals housed in the base. A convex base extending laterally outward from the end of the base, an elastic arm provided with a space between the convex base, and a drive capable of moving the cover relative to the base. A lever and a drive member including a control rod that is connected to the drive lever and is rotatable forward and backward with respect to the base in the plane of the zero insertion force receptacle connector; and a control member installed near the drive lever. And a projection for pressing the elastic arm to cause rearward elastic deformation before the control stick is rotated to the open position, and a zero insertion force receptacle connector. . 7. The elastic arm is provided with a bending contact portion,
The zero insertion force receptacle connector according to claim 6, wherein the control stick is fixed to the open position by combining the contact portion and the protrusion. 8. A distance is provided between the elastic arm and the convex base, and when the rotation of the control stick exceeds 90 degrees, the convex base forces the excessive deformation of the elastic arm to be removed. The zero insertion force receptacle connector according to claim 6. 9. The zero insertion force receptacle connector according to claim 8, wherein at least one of the elastic arm and the convex base is provided with a convex portion extending in the opposite direction.