JPH0729595Y2 - IC socket structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an IC socket structure.

[0002]

2. Description of the Related Art A conventional IC socket structure of this type is shown in FIG.
2 to FIG. 25.

This IC socket structure has a socket body 42 which is in contact with the IC terminal 40 and which is provided with a large number of terminals 41 connected to the substrate, and a socket body 42 which is located on the IC terminal 40 and presses the terminal 41 against the IC terminal 40. Cover member 4 to contact
3 and 3.

Side walls 44 and 45 are formed on the left and right sides of the socket body 42 in the longitudinal direction, and three side engaging grooves 46 are formed inside the side walls 44 and 45. is there. These locking grooves 46 are composed of a vertical groove portion 47 and a lateral groove portion 48 following the vertical groove portion 47.

Further, three locking projections 51 are formed on the outside of the left and right side portions of the cover member 43 in the longitudinal direction.

Then, the cover member 43 is mounted on the socket body 42 with the IC inserted in the IC socket. In this case, the locking projection 51 of the cover member 43 is fitted in the vertical groove portion 47 of the locking groove 46. After insertion, cover member 43
The cover member 43 is attached to the socket main body 42 by moving and to lock the locking projection 51 in the lateral groove portion 48, and the cover member 43 presses the terminal 41 into contact with the IC terminal 40.

[0007]

However, in such a conventional example, by pressing the cover member 43, the cover member 43 is pushed down against the spring force of the contact terminal portion 53 of the terminal 41, The cover member 43 is locked to the socket main body 42 by the locking mechanism. In this case, the bottom surface portion of the cover member 43 only bends the contact terminal portion 53 through the IC terminal 40 by pushing down the cover member 43. Then, there is a problem in that the spring force does not change and the contact pressure to the IC terminal 40 does not change, so that the contact cannot be made more reliable.

The present invention has been made in view of the above problems, and its purpose is to temporarily mount a cover member on a large number of socket bodies and then once use a jig to temporarily mount the cover member. Not only can the cover member be fully assembled to a large number of socket bodies by pushing down the cover member to improve work efficiency, but in this assembly, the spring force of the contact terminal portion increases and the reaction force of the IC is increased. An object of the present invention is to provide an IC socket structure that acts on a terminal contact portion to increase a contact pressure of the IC contact portion and ensure reliable contact.

[0009]

In order to achieve the above-mentioned object, the present invention provides a socket main body having a large number of terminals which are in contact with an IC terminal and are connected to a substrate, and a socket body which is located on the IC terminal. A cover member for pressingly contacting the IC terminal with the terminal and a locking mechanism for releasably locking the cover member with the socket body are provided, and the terminal is bent at an intermediate portion thereof, and this bending is performed. One side to the press-fitting part,
The other side is made into a contact terminal portion, and a board-side terminal portion is formed at an end portion of the press-fitting portion, and the contact terminal portion is bent in a side face V-shape on the side opposite to the press-fitting portion at an intermediate portion thereof. , The bent portion is formed into a contact portion a which comes into contact with the press-fitting portion when the contact terminal portion bends, and a span L2 of a portion ahead of the contact portion a is defined as a span L1 of the contact terminal portion. Shorter,
It is characterized in that an IC terminal contact portion is formed at a tip end portion of a portion ahead of the contact portion a.

[0010]

With this structure, when the cover member is attached to the socket body, the cover member is brought into contact with the socket body and pushed down to cause the locking mechanism to follow the cover member and the bottom surface portion of the cover member to contact the IC terminal. Bend the contact terminal part of. In this case, the contact terminal portion flexes around its base as a fulcrum, and flexes softly. In this state, the cover member is temporarily attached to the socket body. Next, by pressing the cover member, the cover member is pushed down against the spring force of the contact terminal portion of the terminal, and the cover member is locked to the socket body by the locking mechanism. In this case, when the cover member is pushed down, the bottom portion of the cover member bends the contact terminal portion through the IC terminal, the bent portion of the middle portion of the contact terminal portion comes into contact with the press-fitting portion, and the contact portion a is a fulcrum. Then, the portion on the front side of this contact portion a is bent. Since the span L2 of the portion ahead of the contact portion (a) is shorter than the span L1 of the contact terminal portion that bends in the temporary assembly, the spring force becomes large and the reaction force acts on the IC terminal contact portion. , IC of this
The contact pressure to the terminal is increased to ensure the contact.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an IC in an IC socket according to the present invention.
FIG. 2 is a plan view showing a state in which is mounted, and FIG. 2 is a sectional view of the same.

The IC socket 1 includes a protector 2 and terminals 3.
And a cover member 4.

The protector 2 is provided with a protector body 5 as shown in FIGS. 8 to 11. The protector body 5 is in a substantially plate state, and the outer wall portions 6 are provided on the upper surfaces of both ends in the longitudinal direction. 7 are erected. Left and right ridges 8 and 9 are formed on the outer surfaces of the outer wall portions 6 and 7. The IC insertion portion 10 is provided between the outer wall portions 6 and 7 of the protector body 5.
A plurality of terminal insertion grooves 11 are formed along the longitudinal direction of the protector body 5 at predetermined intervals in the IC insertion portion 10 so as to be divided into left and right (upper and lower in FIG. 8). In addition, a hole 12 is formed at the inner end of each of the terminal insertion grooves 11 so as to pass through to the back surface of the protector body 5. Further, ribs 14 for regulating the position of the IC are erected at the outer ends of the inter-groove portions 13 sandwiched by the adjacent terminal insertion grooves 11, and three ribs in the middle portion of these ribs 14 Of 2
At the front of the book, the hook portion 15a of the locking portion 15 that faces outward is provided.
Is formed.

The terminal 3 is made of a conductive metal and is formed by punching a single flat plate into a strip shape and bending it at an intermediate portion. The terminal 3 is shown in FIGS.
As shown in FIG.
The upper side is formed in the contact terminal portion 18, and the press-fitting portion 17
Is linear and has a board-side terminal portion 19 that is crank-bent at its end. Further, the contact terminal portion 18 is bent in a side face V shape at an intermediate portion thereof, and an IC terminal contact portion 20 is formed on an upper surface of a tip portion thereof.

The terminal 3 is inserted into the terminal insertion groove 11 of the protector 2 to form the socket body 27.

This socket body 27 is shown in FIGS.

In this case, the press-fitting portion 17 of the terminal 3 is press-fitted into the terminal inserting groove 11, and the board-side terminal portion 19 projects outward from the left and right side edge portions of the IC inserting portion 10 of the protector 2.

The cover member 4 is shown in FIGS.
As shown in FIG. 2, the cover main body 21 is provided in the shape of a rectangular frame in plan view, and the left and right side wall portions 22 and 2 of the cover member 21 are provided.
Locking portions 24 and 25, which are notches, are formed in the upper edge portion of the inner side of the side wall 3 at intervals in the longitudinal direction thereof.
A projecting portion 26 projecting inward is formed at the upper inner edge of each of 2, 23.

Next, the incorporation of the IC in the IC socket will be described.

The IC is inserted in the IC insertion portion 10 of the socket body 27.
Then, the IC terminal 28 of this IC is brought into contact with the IC terminal contact portion 20 of the terminal contact portion 18 of the terminal 3. In this case, ribs 14 are provided upright on the left and right sides of the IC insertion portion 10, and since the outer wall portions 6 and 7 are provided on the front and rear sides, the IC is positioned by regulating its left and right sides and front and rear sides.
The C terminal 28 surely contacts the IC terminal contact portion 20.

Next, the cover member 4 is attached to the socket body 27. In this mounting, as shown in FIG. 21, the cover member 4 is mounted on the tip of the rib 14 for temporary assembly. That is, the left and right side wall portions 22, 2 of the cover member 4
The hook portion 15a is brought into contact with the inner surface of 3, and the bottom surface portion 4a of the cover member 4 is brought into contact with the IC terminal 28 by pushing down to bend the contact terminal portion 18 of the terminal 3. In this case, the contact terminal portion 18 bends with its base as a fulcrum, and bends softly. And
The ridges 8 and 9 of the outer wall portions 6 and 7 of the socket body contact the inner surfaces of both end wall portions 29 and 30 of the cover member 4. The cover member 4 is temporarily assembled to the socket body 27 by the contact pressure of the ridges 8 and 9 and the hook portion 15.

Next, by pressing the cover member 4, the cover member 4 is pushed down against the spring force of the contact terminal portion 18 of the terminal 3, and the hook portion 15a is engaged with the locking portions 24 and 25 of the cover member 4. Lock. In this case, the cover member 4
By pushing down, the bottom surface 4a of the IC terminal 28
The contact terminal portion 18 is bent via the
The bent portion 18a in the middle of the contact portion comes into contact with the surface portion of the press-fitting portion 17, and the contact portion a serves as a fulcrum to bend the portion 18b on the front side of the contact portion a. The part 18 ahead of this contact part a
Since the span L2 of b is shorter than the span L1 of the contact terminal portion 18 which is bent in the temporary assembly, the spring force becomes large, and the reaction force acts on the IC terminal contact portion 20, and the IC terminal 28 The contact pressure is increased, ensuring reliable contact.

As described above, when the cover member 4 is attached to the socket body 27, both end wall portions 2 of the cover member 4 are covered.
The ridges 8 and 9 of the outer wall portions 6 and 7 of the socket body 27 are in contact with the inner surfaces of 9 and 30, and both end wall portions 2 of the cover member 4 are
A gap M is formed between the inner surface of 9, 30 and the outer wall portion 6, 7 of the socket body 27.

Next, taking out the IC from the IC socket will be described.

Both end wall portions 29, 30 of the cover member 4 are pinched by the thumb and forefinger to apply an inward force to bend the cover member 4 by the amount of the gap M, so that the left and right side wall portions 22, 23 of the cover member 4 are removed. Bend outward as shown by the dotted line. Therefore, the hook portion 15a is disengaged from the locking portions 24 and 25.
In this way, the hook portion 15a is unlocked, the cover member 4 is removed from the socket body 27, and the IC is inserted into the IC insertion portion 1
Take out from 0.

According to the above-described embodiment, since the cover member 4 can be temporarily assembled, the cover member 4 is temporarily assembled to the plurality of socket bodies 27, and the cover member 4 is pushed down at a time by using a jig to obtain a large number of sockets. The cover member 4 can be permanently attached to the main body 27, and the work efficiency can be improved.

Further, in this assembly, the spring force of the contact terminal portion 18 becomes large, and the reaction force acts on the IC terminal contact portion 20 to increase the contact pressure to the IC terminal 28, so that the contact is secured. Can be something.

[0029]

As described above, the IC according to the present invention
The socket has a socket body that is in contact with the IC terminal and has a large number of terminals connected to the substrate, a cover member that is located on the IC terminal and presses the IC terminal into contact with the terminal, and the socket body has the socket. And a locking mechanism that locks the cover member in a detachable manner, the terminal is bent at an intermediate portion thereof, and one side of the bent portion is a press-fitting portion and the other side is a contact terminal portion, A board-side terminal portion is formed at an end portion of the press-fitting portion, and the contact terminal portion is bent in a side face V shape on the side opposite to the press-fitting portion at an intermediate portion thereof, and the bent portion is formed as the contact terminal portion. A contact portion (a) that comes into contact with the press-fitting portion when is bent, and a span L2 of a portion ahead of the contact portion (b) is made shorter than the span L1 of the contact terminal portion (a). Since the IC terminal contact portion is formed at the tip of the side portion, When mounting the bar member to the socket body, the cover member against the socket body, to deflect the contact terminal portion of the terminal against the bottom portion of the cover member placed along the locking mechanism on the cover member to the IC terminal by depressing. In this case, the contact terminal portion flexes around its base as a fulcrum, and flexes softly. In this state, the cover member is temporarily attached to the socket body.

Next, by pressing the cover member, the cover member is pushed down against the spring force of the contact terminal portion of the terminal, and the cover member is locked to the socket body by the locking mechanism. In this case, when the cover member is pushed down, the bottom portion of the cover member bends the contact terminal portion through the IC terminal, the bent portion of the middle portion of the contact terminal portion comes into contact with the press-fitting portion, and the contact portion a is a fulcrum. Then, the portion on the front side of this contact portion a is bent. The span L2 of the portion ahead of the contact portion a is the span L of the contact terminal portion that bends when temporarily assembled.
Since it is shorter than 1, the spring force becomes large and the reaction force becomes I
It acts on the C terminal contact portion, and the contact pressure of this on the IC terminal increases, ensuring reliable contact.

As described above, the contact terminal portion of the terminal is
Since temporary assembly can be performed when the base portion is used as a fulcrum when it flexes flexibly (at the time when springiness is weak), the cover member can be easily assembled temporarily on a large number of socket bodies, and work efficiency can be improved. After temporarily assembling the cover member to a large number of socket bodies, the cover member can be permanently assembled by pushing down the cover members with a jig or at once to improve the work efficiency. You can

Further, in this assembly, the spring force of the contact terminal portion becomes large, and the reaction force acts on the IC terminal contact portion,
The contact pressure of this with the IC terminal is increased, and the contact can be ensured.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which an IC is mounted on an IC socket structure according to the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a plan view of a socket body in an IC socket structure according to the present invention.

FIG. 4 is a side view of the socket body.

FIG. 5 is an end view of the socket body.

FIG. 6 is a rear view of the socket body.

FIG. 7 is a sectional view taken along the line AA of FIG.

FIG. 8 is a plan view of the protector.

FIG. 9 is a side view of the protector.

FIG. 10 is a sectional view taken along the line BB of FIG.

FIG. 11 is a cross-sectional view taken along the line CC of FIG.

FIG. 12 is a side view of the terminal.

FIG. 13 is a plan view of the terminal.

FIG. 14 is a back view of the terminal.

FIG. 15 is a plan view of a cover member.

FIG. 16 is a side view of the cover member.

FIG. 17 is an end view of the cover member.

FIG. 18 is a back view of the cover member.

FIG. 19 is a sectional view taken along the line D-D in FIG.

FIG. 20 is a sectional view taken along the line EE of FIG.

FIG. 21 is a sectional view showing a state where a cover member is temporarily assembled to the socket body.

FIG. 22 is a plan view of a conventional IC socket structure.

FIG. 23 is a side view of the IC socket structure.

FIG. 24 is an end view of the IC socket structure.

FIG. 25 is a sectional view showing a state in which an IC is mounted on a conventional IC socket structure.

[Explanation of symbols]

 3 terminals 4 cover member 14 rib 15 locking portion 18 contact terminal portion 27 socket body 28 IC terminal

Claims (1)

[Scope of utility model registration request] 1. A socket body which is in contact with an IC terminal and has a large number of terminals connected to a substrate, a cover member which is located on the IC terminal and presses the IC terminal into contact with the terminal, and the socket body. And a locking mechanism for releasably locking the cover member, the terminal is bent at an intermediate portion thereof, and one side of the bent portion is a press-fitting portion and the other side is a contact terminal portion. Then, a board-side terminal portion is formed at an end portion of the press-fitting portion, and the contact terminal portion is bent at a middle portion thereof in a side-face V shape on the side opposite to the press-fitting portion, and the bent portion is formed into the contact portion. When the terminal portion is bent, the span L2 of the contact portion a which comes into contact with the press-fitting portion and which is located on the front side of the contact portion a is made shorter than the span L1 of the contact terminal portion. The IC terminal contact part is formed at the tip of the front side part. IC socket structure.