JPS59165442A - Contact mechanism in socket of integrated circuit - Google Patents

Abstract

PURPOSE:To improve the reliability of contact by the elastic displacement of one contact of plate form from the side of one side plane of an IC lead to hold it with another side plane of the IC lead which is opposite to said plane and other two side planes, thereby contriving the thinner and smaller contact part of the IC lead and simplification of the process and the structure. CONSTITUTION:A cam element 24 is rotated to move a movable brock 2 laterally in one direction. An inside wall 30 of a hole for insertion of the contact of the movable brock 2 presses the back of the plate contact 4 so as to perform the elastic displacement with a fixed part 14 as a fulcrum, thereby bringing a third contact leaf 12 in contact precedently with one side plane of the IC lead 7 opposite to the plate contact 4. Also, further continued pressure causes the elastic displacement with the third contact leaf 12 and the fixed part 14 as fulcra in the direction to dissolve that bend, thereby inserting the IC lead 7 between a first contact leaf 10 and a second contact leaf 11. These contact leaves 10 and 11 are brought in contact with the two sides meeting one side of the lead 7 at right angles. When the cam element 24 is rotated to the original position and the pressure is released, the movable brock 2 moves in other direction by stability of the plate contacts 4 and forms the ready state for contact with the IC lead 7 again.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method in which a plate-like contactor having elasticity is elastically deflected from the -I11 surface side of an IC lead, and is brought into contact with one opposite side surface of an IC'J-de. Regarding the contact mechanism of the IC connector, which is designed to sandwich the IC connector between the two sides of the It ensures reliable contact and also enables the purpose of no-load insertion/extraction of the ICIJ-board.

The drawings show an embodiment according to the above-mentioned purpose.

In the figure, ■ indicates socket formation professional 1. 2, 7 and 3 indicate the cover block on which the IC bar and cage are all mounted.

The socket forming block 1 has a plate-like contactor 4 for contacting an IC lead. The plate-shaped contact 4 has its base portion press-fitted into the socket forming member I, and is raised up so that it can be elastically deflected in the direction of the plate surface using the fixed portion as a fulcrum.
When CI)-1'7 is placed in a contact standby state, its plate surface is arranged to face one side of the IC lead 7. Reference numeral 5 indicates a press-fit fixing part of the plate-shaped contact 4, and 6 indicates a core press-fit fixing part 5.
From above, the male terminal is shown protruding downward.

A slot 8 for receiving an IC'J-dead extending in the longitudinal direction of the IC'IJ7 door is bored in the plate surface of the plate-like contactor 4 placed in a state facing the IC lead 7.

(ICI) that narrows the width of the slot from the slot forming walls of the plate-like contact portions 9 on the left and right sides of the slot divided by the opening of the slot 8)
- A first contact piece 10 and a second contact piece ii for clamping are provided in a protruding manner.

The first contact piece 10 and the second contact piece 11 are preferably arranged facing each other.

Further, a third contact piece 12 is formed at the tip of the plate-shaped contactor 4, that is, the continuous piece at the upper end of the slot 8. The connecting piece is IC'J-
Bending it in a direction away from the door, and forming a groove in the connecting piece by bending it in a direction away from the door.

The circuit board 13 is brought into a state substantially opposite to the IC'J-board.

Further, the plate-shaped contactor 4 is surrounded at the waist so that its waist is curved convexly toward the side opposite to the IC'J-do. The drawing shows the entire structure when it is enclosed at the waist so that it forms a dogleg shape. That is, a case is shown in which the upper body of the plate-shaped contactor 4 is bent forward toward the ICIJ-door, and the lower body is bent backwards toward the IC'J-door.

The waist part may be such that the plate-like contact 4 is curved.

The first contact piece 10 and the second contact piece 11 are preferably arranged near the waist surrounding portion 14 to face each other.

Further, the mobile pro 2 2 is stacked on the above-mentioned solenoid forming block 1 so that it can be reciprocated and laterally moved in the direction in which the plate-like contacts 4 are arranged. Reference numeral 15 denotes guide walls I6t/''i that are attached to two sides of the moving block 2 parallel to the moving direction of the moving block 2 to guide the reciprocating lateral movement.
, is a moving block stopping wall that is positioned and erected at one end of the moving block 2 on the moving path in order to prevent the moving block 2 from moving in one direction at a fixed position. Mobile Pro 1. integrally molded with ri 2,
The space defined by the stop wall 16 and the guide wall 15 is defined as a moving block storage chamber 17, and the plate-shaped contactor 4 is set up in the storage chamber IJ.

As described above, the movable block 2 is stacked on the socket forming block 1 so as to be movable in a reciprocating and lateral manner, and the plate-shaped contact 4 is inserted into the contact insertion hole 18 drilled in the movable block 2. The plate-shaped contact 4 is inserted into the contact insertion hole 18, and its half body projects upward from the moving block.

Further, the cover block 3 has an ICI) card insertion hole 19 corresponding to the contact insertion hole 18 and the plate-like contact 41C, and is stacked on the moving block 2, and both ends of the cover block 3 are stacked on the moving block 2 under the stack. A lock piece 20 provided vertically engages elastically into the engagement groove 21 formed on both sides of the socket forming block and securely locks into the stepped portion 22, thereby integrally fixing the lock piece 20 to the socket forming block l. to wear Therefore, the mobile processor RI2 is placed between blocks 1 and 3 so as to be movable laterally. The cover block 3 has a shaft floating prevention piece 31 that presses the shaft 25 of the force/muscle element 24 from above by the above-mentioned overlapping.

Due to the polymerization of the cover block 3 mentioned above, the mobile phone, Tsuku 2
The upper body part of the plate-shaped contact 4 that penetrated the
The IC of the IC package 23 is inserted into the IC'J-card insertion hole 19 from below and mounted on the other cover block 3.
The lead 7 is inserted into the IC/lead insertion hole I9 from above.

As described above, the IC leads 7 are placed in the facing state as shown in FIG. 5 in the IC lead insertion hole 19, that is, in the contact standby state, and are brought into the contact state as shown in FIG. It will be destroyed.

The drawings illustrate a moving means that applies a moving force to the moving block 2. That is, as mentioned above, a stop wall 16 is disposed at one end of the socket forming block I to abut against one end of the movable block A7 to prevent it from moving in one direction at a fixed position. A cam element 24 for pressing or releasing the pressure on the other end of the mobile device 2 is provided at the other end. This cam element 24 utilizes an eccentric cam, which is disposed at the end of the socket-forming bracket so as to face the end surface of the movable bracket 2, and a shaft 25 protruding from both ends of the shaft wall 15
The cam element 2 is removably fitted into the bearing groove 26 which is notched in the cam element 2.
4 is rotatably supported, and furthermore, a projecting wall 29 which also serves as a positioner and protrudes from the socket forming block side is slid into a guide groove 27 bored around the path of the cam element 24, and into the guide groove 27. The circumferential wall of the guide element, including the part along which it runs along, is used as the above-mentioned eccentric cam surface, and from the contact standby state shown in FIG. 4. When moving (turning the shaft 25 with a tool), the mobile pro moves according to the amount of eccentricity. As shown in FIG. 6, the wheel 2 moves laterally in one direction. Due to this lateral movement, the plate contact 4 and the IC
IJ-Contact with the door is obtained.

That is, the inner wall of the contact insertion hole 18 of the movable block 2 is moved laterally in one direction of the movable block 2, so that the inner wall of the contact insertion hole 18 of the movable block 2 is moved to the plate surface (back surface) of the plate-shaped contact 4 opposite to the IC'J-do. is arranged to press against the top of the bending part, and when the inner wall 30 of the contact insertion hole presses the back surface of the plate-shaped contact 4, the contact 4 is initially elastically deflected about its fixed part 14 as a fulcrum. and the third contact piece 12. ' is brought into preliminary contact with one side of the IC lead 7 facing the plate-like contact 4, and
Furthermore, by the subsequent pressing, the third contact piece 12 and the fixing part 14 are elastically deflected in the direction to eliminate the bending, using the third contact piece 12 and the fixing part 14 as fulcrums, and the IC'J-door is fixed to the first contact piece 10 and the second contact piece 11. (Intervention may be such that the IC lead 7 does not completely penetrate between the contact pieces 10 and 11), and thus contacts the two side surfaces perpendicular to the above-mentioned side surfaces of the contact pieces 10 and 11kIc lead 7.

When the cam element 24 is rotated to its original position and the above-mentioned suppression is released,
The inner wall 30 of the moving bar a7 also releases the pressure, and the plate contact 4
It moves in the other direction with the restoring force of , and re-establishes the state of waiting for contact with the ICIJ-door.

As a result of the above, the IC'J-door has its base side-side
The contact piece 12 has its two front end side surfaces contacted by the first and second contact pieces 10 and 11, and highly reliable contact is ensured by the three-point contact. Moreover, the above three-point contact is I
This can be achieved by a single plate contact 4 placed on one side of the CIJ-door.

The higher density and finer pitch of conventional IC'J-doors has required measures to be taken in the socket design, but with this contact mechanism, two leaf springs are used as branches between the contacts. Unlike the contact mechanism in which an IC lead is interposed between the contacts, the above contact mechanism is provided by a single plate-like contact, which makes it easy to make the contact on the 2nd hook side thinner and to narrow the pitch between them, while also making it simple. The above-mentioned contact mechanism completely eliminates concerns about the contact reliability of the contactor using the plate.

In addition, the purpose of inserting and removing the IC lead 7 without any load using the single-plate contactor was easily accomplished. Above 1. 2nd contact piece io, ti
If they are arranged facing each other, the above-mentioned clamping can be performed without applying any sliding force to the IC lead 7, and the design becomes easy. In addition, by pressing the top of the bending portion 14 of the plate-shaped contact 4, slight bending (without increasing the pitch of the contact due to contact and the required maximum deflection amount of the solid contact 4) can be easily achieved. The amount of sliding of the third contact piece 12 against the IC lead 7 can also be increased.

In addition to the case where the IC lead 7 is plate-shaped, the present invention is also practical even when the IC lead 7 is a round pin, and it can be practiced even when the plate-shaped contacts 4 are arranged in two or more rows.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an IC socket showing an embodiment of the present invention, FIG. 2 is an assembled perspective view of a socket forming block and a moving block, FIG. 3 is an assembled plan view of FIG. 1, and FIG.
5 and 6 are enlarged partial cross-sectional views of the same, FIG. 5 shows the IC lead in a contact standby state, FIG. 6 shows the IC lead in a contact state, and FIG. 7 shows a plate-shaped A side view of the contact, FIG. 8 is the front view, FIG. 9 is the rear view, and FIG. 10 is the IC!
FIG. 11 is a longitudinal cross-sectional view of the same, and FIG. 12A is a cross-sectional view of the same before contact; Figure B is an enlarged cross-sectional view showing the state after contact. l ・Socket forming block, 2 Gopro・ri, 3
...Cover block, 4.Plate contact, 5.Press-fit fixing part, 7..IC'J-de, 8.Slot hole, 10..
1st contact piece, 11 - 2nd contact piece, 12-3rd contact piece,
14 - Waist bending part, 18... Contact insertion hole. Figure 8 Figure 9

Claims (4)

[Claims] (1) I with the base press-fitted into the socket forming block
A plate-like contactor for contacting the CIJ is provided, and the plate-like contactor is raised from its fixed part in the longitudinal direction of the IC lead placed in a contact standby state, and its plate surface is connected to one side of the IC lead. In the I'C connector, the plate-shaped contactor is made to face the IC lead and is elastically deflected toward the IC lead in the contact standby state to obtain contact with the IC lead. A slot for receiving the ICIJ-board extending in the longitudinal direction of the ICIJ-board is drilled in the plate surface of the contact, and the plate-shaped contact parts on the left and right sides of the slot are divided by opening the slot. A first contact piece and a second contact piece for clamping an IC lead to narrow the width of the slot are provided protruding from the slot forming wall, and a connecting piece at the upper end of the slot of the plate-like contact is provided with ICIIJ-
Form a third contact piece for contacting the IC lead, and further bend the plate-shaped contact so that its waist is convex on the side opposite to the IC lead, and then attach the mobile pro to the socket forming block. Stack them so that they can move back and forth laterally, insert the plate-shaped contact into the contact insertion hole perpendicular to the movement direction, which is perpendicular to the movement direction, and insert the plate-shaped contact into the contact insertion hole. The contact standby state is formed by removably inserting the ICl7-board from the opposite direction, and the plate-shaped contact is moved through the inner wall of the contact insertion hole of the mobile unit by the reciprocating lateral movement of the movable block. IC
The plate surface on the opposite side of the lead is arranged so as to be suppressed or released from suppression, and the plate-shaped contact is elastically deflected using its fixing part as a fulcrum by the suppression by the inner wall of the contact insertion hole, and the third contact piece is brought into plate-shaped contact. The IC lead is first brought into contact with one side of the IC lead facing the lead, and the IC lead is further elastically deflected in a direction to eliminate the bending using the third contact piece of the VC and the above-mentioned fixing part as a fulcrum. A contact mechanism in an IC socket characterized by intervening between a first contact piece and a second contact piece so that both contact pieces come into contact with two side surfaces perpendicular to the above-mentioned side surface of an IC lead. (2) In the invention described in paragraph 1, the first contact piece and the second contact piece
A contact mechanism in an IC socket, characterized in that contact pieces are disposed facing each other. (3) In the invention described in paragraph 1, the first contact piece and the second contact piece are
A contact mechanism in an IC device, characterized in that a contact piece is arranged near a waist surrounding portion of a plate-like contact. (4) In the invention described in item 1, the contact mechanism in the IC socket is characterized in that the inner wall of the contact insertion hole presses the top of the waist surrounding part of the plate-like contact.