CN1216444C

CN1216444C - Integrated circuit socket

Info

Publication number: CN1216444C
Application number: CN021055750A
Authority: CN
Inventors: 立原哲生; 桑宫憲久
Original assignee: Enplas Corp
Current assignee: Enplas Corp
Priority date: 1995-05-09
Filing date: 2002-04-16
Publication date: 2005-08-24
Anticipated expiration: 2016-05-09
Also published as: CN1405934A; CN1122340C; KR960042905A; KR100227468B1; CN1142126A; TW344153B; JPH08306454A

Abstract

To provide an IC socket by which a lead is not deformed when an IC package is taken out of a mounting position. A tip part of at least a first partition plate counted from at least one end of respective rows among a large number of partition plates rowed up along the opposed two sides of an IC socket main body, is formed so that a loosely moving distance in the rowing-up direction of contact pins can be largely allowed more than its base parts.

Description

Integrated circuit socket

Technical field

The present patent application is application number " 96106299.1 ", and May 9 1996 applying date, denomination of invention are divided an application for " integrated circuit socket ".

The present invention relates to be plugged in along the IC socket that forms between the demarcation strip of the face-to-face arranged on both sides setting of body constituting the pin that contacts with each lead-in wire of the integrated circuit that puts (IC) plug-in unit.

Background technology

As an example of the IC socket of this quasi-tradition, shown in Fig. 7-9, Fig. 7 is the vertical view of socket as described later, and Fig. 8 is the partial sectional view along the VIII-VIII line of Fig. 7, and Fig. 9 is the partial sectional view along the IX-IX line of Fig. 7.Among the figure, 1 is the IC jack body that flat shape rectangularity, end surface shape slightly become H shape, in its face-to-face both sides, by integrally formed formation multiple row demarcation strip 2, the pin 3 that embedding is fixed in the installation through hole 1a (Fig. 9) that forms on the jack body 1 is plugged between adjacent demarcation strip.As shown in Figure 9, pin 3 has the upwardly extending contact chip 3A of almost parallel, 3B, constitutes its head 3a, 3b are contacted with the lead-in wire 4a of the IC plug-in unit 4 that puts in different position up and down.

Yet, in the IC plug-in unit of form like this, (width is certain using manual guide rod, the rod component of thickness attenuation from one end to the other side) 5 putting at the IC plug-in unit 4 of assigned position (dotted line position of Fig. 8) when jack body 1 unloads, as shown in Figure 8, be by guide rod 5 being inserted along carrying out in the groove 1A of the central portion longitudinal extension of jack body 1.In this occasion, in the operation of carrying out guide rod 5 is inserted is ill-considered, in when, guide rod 5 opposed slot 1A bending taking place or tilting when, self inserting of guide rod 5 can not be carried out smoothly, and this operation is in case termination need make operation restart, during lateral attitude shown in the chain-dotted line that this moment, in a single day IC plug-in unit 4 was taked among Fig. 8, yet this moment, shown in the pattern of Figure 10, the lead-in wire 4a skew that is in the opposition side end of being lifted a side on has relatively been entered between pin.

In this occasion, when once more IC plug-in unit 4 is pressed into make become the state of setting after, by suitably carrying out the insertion operation of guide rod 5, IC plug-in unit 4 can be taken out certainly, yet, in traditional IC socket, generally because of demarcation strip 2 domain of walker of pin 3 is constrained to minimum, and, because the 4a that goes between uses than pin 3 more soft materials to make, the head 3a of the pin 3 that lead-in wire 4a and twisted skew enter is collided and cause the result who is caught on, thereby produce the problem that makes the 4a bending that goes between.

Therefore, this type of problem that the present invention is had in view of traditional IC socket just, purpose is to propose IC socket as described below, be exactly when the IC plug-in unit is taken out, the insertion operating result that can prevent because of unsuitable insertion guide rod 5 causes IC plug-in unit lead-in wire to be hooked the bending that causes towards pin.

Summary of the invention

According to the present invention is the IC socket that achieves the above object, become hook the pin that contacts with each lead-in wire of the IC plug-in unit that puts to be plugged in along between the demarcation strip of the face-to-face arranged on both sides setting of described jack body, shape as described below is formed at the top from the head portion of at least the first demarcation strip of not aspectant at least one side of described both sides, compare with the demarcation strip base portion exactly, this head portion allows described pin along arrangement direction to be set there is big amount of floating.

In addition, according to the invention described above, can with the head portion of above-mentioned at least 1 demarcation strip in accordance with regulations degree of depth excision form stepped; Perhaps above-mentioned at least the 1 demarcation strip formed the shape that its apical side height is lowered gradually towards the demarcation strip top; Perhaps the thickness formation with above-mentioned at least the 1 demarcation strip makes top ends thickness also thinner than its base portion thickness.

In addition, according to the present invention, promptly traditional relatively is plugged in along the structure that forms between the demarcation strip of the face-to-face arranged on both sides setting of body forming 2 pins that contact with the base portion of each lead-in wire of the IC plug-in unit that puts with top ends respectively, the structure of IC socket of the present invention is: described pin is arranged in row, makes from least the 1 described pin of at least one end of described pin row only to contact with the base portion of described lead-in wire.

Therefore, when the IC plug-in unit that puts is unloaded, the lead-in wire and the pin that are positioned at the end are broken away from, the IC plug-in unit that is removed was reverted to when putting state originally once more, in case push the pin of adjacency to the side, corresponding therewith, this pin is floated to the side to be made a concession, and do not constitute the member that hinders above-mentioned lead-in wire motion, thus above-mentioned lead-in wire is hooked on the pin, and cause that crooked situation does not take place.

The simple declaration of accompanying drawing

Fig. 1 is the stereogram of expression the present invention the 1st embodiment major part,

The partial top view that Fig. 2 describes for the effect to the present invention the 1st embodiment,

Fig. 3 is the stereogram of expression the present invention the 2nd embodiment major part,

Fig. 4 is the stereogram of expression the present invention the 3rd embodiment major part,

Fig. 5 is the stereogram of expression the present invention the 4th embodiment major part,

Fig. 6 is the cutaway view of expression the present invention the 5th embodiment major part,

Fig. 7 is the vertical view of expression traditional IC socket one example,

Fig. 8 is the partial sectional view along the VIII-VIII line of Fig. 7,

Fig. 9 is the partial sectional view along the IX-IX line of Fig. 7,

Figure 10 is positioned at the pin of each side end and the partial top view of lead-in wire mobile status when for expression the IC plug-in unit being taken off.

Fig. 1 is the stereogram of expression the present invention the 1st embodiment major part.Because all structures of this embodiment are identical with above-mentioned conventional art structure, thereby omit illustrated explanation, identical member and part are described with same numeral.

Embodiment

As ise apparent from FIG. 1, if the 1st embodiment according to the present invention, in the demarcation strip 2 that this occasion is provided with the face-to-face arranged on both sides along jack body 1, from at least the first formation of end make the IC plug-in unit to hold side part 2a lower than base portion 2b, the polylith demarcation strip is held direction excision prescribed depth and forms stepped from its top ends along the IC plug-in unit.

Therefore, if according to this embodiment, when head 3a, the 3b of pin 3 by when push the side, shown in Fig. 2 is rough, its domain of walker along row's set direction is significantly enlarged.Therefore, when unloading IC plug-in unit 4, owing to even the lead-in wire 4a and the pin 3 that leave from pin 3 are collided, therefore pin 3 is flexibly dodged, thereby can avoid producing as in this type of traditional IC socket, on lead-in wire 4a, apply distortion such as making the 4a generation bending that goes between above the load of allowable stress.

Hence one can see that, just enough measure excision at least in accordance with regulations from the top ends of the first demarcation strip 2 of end substantially, yet, if better measure excision at least in accordance with regulations from the top ends of the first demarcation strip of any end at each not aspectant demarcation strip two ends of the multiple row of face-to-face both sides.

Fig. 3 is same as in figure 1, is the stereogram of the major part of expression the present invention the 2nd embodiment, in this embodiment, the apical side height formation from the polylith demarcation strip 2 of end is lowered to head portion 2a gradually from base portion 2b.Therefore, even in this embodiment, its action effect is identical with the 1st embodiment.

Fig. 4 is same as in figure 1, is the stereogram of the major part of expression the present invention the 3rd embodiment.In this embodiment, the polylith demarcation strip 2 from the end is formed the thickness that makes top ends 2a than thin stepped of base portion 2b.Therefore, even in this embodiment, its action effect and the 1st, the 2nd embodiment are identical.

Fig. 5 is same as in figure 1, is the stereogram of expression the present invention the 4th embodiment major part.In this embodiment, make polylith demarcation strip 2 formation from the end its thickness begin attenuation gradually to top ends 2a from its base portion 2b.Therefore, in this embodiment, have the action effect identical with the foregoing description.

Fig. 6 is the cutaway view of the major part of expression the present invention the 5th embodiment.As shown in the figure, this embodiment for example is that making each other two head 3a of pin 3 and the top ends of J-lead 4a is free end with the lead-in wire 4a formation J-shaped of IC plug-in

unit

4, and 3b contacts respectively with the base portion of J-lead 4a.This is effective especially to possessing the IC sockets that constitute so-called 2 contact pins, the not head 3a of at least the of an aspectant end 1 pin 3 excision at least from the face-to-face both sides of jack body 1, makes pin and lead-in wire 4a formation any contacts and constitute.

Because the 5th embodiment has said structure, the result is when IC plug-in unit 4 is unloaded, must not exist with the pin part 3a that the free end portion of the lead-in wire 4a of easy deformation is relatively collided even lead-in wire 4a skew enters between demarcation strip, and the base portion part of more on-deformable lead-in wire 4a is contacted with pin.Therefore,, also can not make lead-in wire 4a produce flexural deformation, generally speaking, can make the shape of lead-in wire 4a keep normal even in this occasion.

More than, various embodiments of the present invention are described, for shape at the demarcation strip 2 of assigned position, as long as can obtain to make the domain of walker of pin to enlarge, can not be restricted to the described embodiments especially, for example, the excision face of the various embodiments described above also can be a curved surface, excision portion etc. also goes for part or all in the multiple row demarcation strip, can part or all forms respectively this formation part continuously longitudinally along it.Therefore, also can carry out appropriate combination to the demarcation strip shape that in the various embodiments described above, illustrated.In addition, be offset the occasion that falls between the 1st and the 2nd pin,, therefore, preferably corresponding therewith frame inner side end partly excised owing to, make the inner side end one lateral bending song of the pin of the 1st end along frame when the origin-location is returned in the lead-in wire end of IC plug-in unit.In addition, also can form and enable to allow that pin is along the float upper section attenuation upward successively of the big demarcation strip part of quantitative change of its orientation.

As mentioned above according to the present invention, owing to, the lead-in wire of IC plug-in unit is deformed, thereby the high-quality IC socket that is suitable for numerous IC devices are checked operation can be provided in that the IC plug-in unit is put the position when taking off from it.In addition, owing to need not to carry out complicated processing according to the present invention, need not additional other member yet, therefore, compare with conventional articles, cost of manufacture can not rise yet.

Claims

1. integrated circuit socket, be plugged in along between the demarcation strip of the face-to-face arranged on both sides setting of jack body forming 2 pins that contact with the base portion of each lead-in wire of the integrated circuit plug-in unit that puts with top ends respectively, it is characterized in that, the structure of described circuit socket is: described pin is arranged in row, makes from least the 1 described pin of at least one end of described pin row only to contact with the base portion of described lead-in wire.