JPH035026B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a connector that allows each contact to be easily assembled when a large number of contacts are arranged in parallel at high density.

BACKGROUND TECHNOLOGY In general, as a means of implanting a contact into a connector body, the legs of the contact are press-fitted into implantation holes previously drilled in the connector body, and the claws provided on the legs are dug into the inner wall of the hole to ensure firm implantation. We are trying to

For example, in an IC socket or the like in which an IC is mounted on a contact to obtain contact pressure, a large number of slots are arranged in parallel around the IC accommodating part through a partition wall, and the contact is inserted into a hole drilled in the bottom wall of the slot. The legs are press-fitted so that the contact portion of the contact is within the slot.

Problems to be Solved by the Invention However, in the contact implantation structure as described above, a minute leg piece is pressed into an implantation hole of a limited depth, and the contact is implanted using this as the only fixing support. Because of this, it is extremely unstable and prone to tilting and displacement. The inclination and displacement also occur due to the implantation bias of the leg piece during press-fitting.

In addition, the contacts have to be press-fitted one pin at a time into the holes drilled in the bottom wall of the slot, which not only complicates the contact assembly work, but also in view of the current situation where contacts are becoming increasingly finer and more densely arranged. Press-fitting the contact into the slot using a jig is extremely difficult, and there is a risk that the contact may be deformed by external force during press-fitting.

The present invention provides a novel connector in which a group of contacts can be assembled into a contact retaining wall from the side by snap fitting, etc., and installation in a slot and assembly of contacts and their carriers can be easily achieved. This is what we provide.

Structure of the Invention According to the present invention, a large number of upper slots arranged in parallel with each other via a partition wall and a large number of lower slots arranged in parallel with each other via a partition wall are arranged in vertical correspondence, and the upper slots and A contact holding wall is formed by the bottom wall that vertically separates the lower slot, and a U-shaped holding part formed on the contact is inserted into both slots from the open end side of the upper and lower slots to hold the contact holding wall. At the same time, the retaining wall is engaged with the engaging claw provided on the horizontal U-shaped clamping part to prevent it from coming out, and the contact part connected to the horizontal U-shaped clamping part is introduced into the upper slot to implant the contact. It has a connector structure that allows for easy installation.

Function Since the present invention is constructed as described above, the group of contacts is fitted into the contact holding wall formed by the bottom wall of the upper and lower slots by pushing it from the side using the horizontal U-shaped holding part. , just by engaging the engaging claw provided on the horizontal U-shaped holding part with the holding wall,
An assembly of a holder serving as a contact carrier and a contact can be easily formed. Further, by using the horizontal U-shaped clamping part of the contact that holds the contact holding wall as a support part, the contact part connected to the clamping part can be stably supported in the slot in an appropriate posture.
In addition, deformation, twisting, inclination, etc. of the leg pieces, which are caused when the leg pieces of the contact are press-fitted into the implantation hole one pin at a time as in the conventional case, are not caused.

Embodiments of the Invention First Embodiment (See FIG. 1) In the figure, reference numeral 1 indicates a contact holder 1 forming a connector body. The contact holder 1 has a large number of upper slots 2 arranged in parallel on its upper surface side with partition walls interposed therebetween, and a large number of lower slots 3 arranged in parallel on its lower surface side with partition walls interposed therebetween. The lower slot 3 and the upper slot 2 are arranged vertically in parallel and in the same phase, and a contact holding wall 4 is provided at the bottom wall of both slots that vertically separates the upper slot 2 and the lower slot 3. Form. Two sets of the upper slot 2 and lower slot 3 as described above are arranged symmetrically on both sides of the contact holder 1.

The other 6 represents a contact, and the contact 6 has a horizontal U-shaped clamping part 6', and has a contact piece 6f bent into an inverted U-shape at one end of the horizontal U-shaped clamping part 6'. The horizontal U-shaped clamping part 6' consists of an upper clamping piece 6a and a lower clamping piece 6b, and a contact piece 6f which can be elastically displaced up and down is connected to the upper clamping piece 6a.

The installation contact piece 6f has a contact portion 6g on its end on which an external terminal such as an IC is placed, and by placing the external terminal on the contact portion 6g and applying pressure, it bends downward and its Contact pressure is obtained by repulsive force.

The horizontal U-shaped clamping part 6' of the contact 6 is inserted into both the upper slot 2 and the lower slot 3 from the open end side, and is fitted with a snap so as to clamp the contact holding wall 4, and the horizontal U-shaped clamping part 6' The contact piece 6f connected to the portion 6' is introduced into the upper slot 2 to implant the contact 6.

The horizontal U-shaped clamping portion 6' has one clamping piece 6a connected to the contact piece 6f attached to the bottom of the upper slot 2, the other clamping piece 6b attached to the bottom of the lower slot 3, and both clamping pieces 6a connected to the contact piece 6f. A connecting piece 6c that connects 6a and 6b is attached to the side surface of the retaining wall 4, and the retaining wall 4 is firmly clamped by the elasticity of both clamping pieces 6a and 6b. A hook-shaped engagement claw 6d is provided at the end of the clamping piece 6b, and the engagement claw 6d is engaged with the engagement step 8 formed at the end of the bottom wall of the lower slot 3 in the opposite direction to the insertion direction. To prevent it from coming out in the direction. The contact piece 6f can be bent up and down as described above with the support of the holding portion of the holding wall 4 formed by the holding pieces 6a and 6b.

The 6 groups of contacts are connected in series by the retainer 9 left during the punching process, and are inserted and snapped together from the side of the contact holder 1 as described above.

The assembly of the contact holder 1 and contacts 6 is used as it is as a connector. Further, depending on the implementation, the same assembly is assembled into another housing such as a case or a rectangular frame to constitute a connector.

Further, as shown by the dotted line in the figure, the contact 6 is made into a basic shape, and a leg piece 6e is lowered from one clamping piece 6b of a horizontal U-shaped clamping article 6', and this is used as a connection pin for a printed wiring board, etc. . Incidentally, in the drawing, the connecting piece 6c of the horizontal U-shaped holding part protrudes to the side of the retaining wall 4, but the connecting piece 6c can also be restricted by a partition wall like the holding pieces 6a and 6b. A second possible embodiment (see FIGS. 2 to 7) In this embodiment, the contact holder 1 holding the contacts 6 as described above is housed in a housing-shaped case 10.
The leg piece 6e of the contact 6 is press-fitted into the implantation hole 11 provided in the bottom wall of the case, and the end portion is made to protrude outside to serve as a connection pin.

In order to integrate the case 10 and the contact holder 1, mounting seats 12 are provided at both ends of the contact holder 1 as shown in FIG. 6, and the contact holder 1 is fitted into the storage chamber 13 of the case 10. The mounting seat 12 is fitted into the mounting seat fitting recess 14 provided on the defining wall of the storage chamber 13, and screwed into place using the mounting holes 15 and 16 provided in the mounting seat 12 and the recess 14. . The contacts 6 held in the contact holder 1 are regulated by the inner wall surface of the storage chamber 13 as shown in FIG.
Strengthen the holding power.

Further, a holding cover 17 is rotatably attached to one end of the case 10 by a hinge 18, and an IC or the like placed on the contact piece 6f of the contact 6 is pressed when the cover 17 is closed. A lock lever 19 for keeping the cover 17 closed is rotatably provided at the other end of the case.

In the above embodiment, the contact holder 1 holding six groups of contacts is press-fitted into the implantation hole 11 provided in the bottom wall of the case. As described above, the contact 6 has its lower part supported by the press-fitting part and its upper part supported by the clamping part, and is also supported by the case 10.
It is supported by the side wall of.

Third Embodiment (See FIGS. 8 and 9) This embodiment shows a composite connector using the contact holder 1 formed in the first embodiment as a replacement connector.

As shown in the figure, a contact 22 is press-fitted with its leg piece 22b into an implantation hole 21 provided in the bottom wall of a housing-shaped case 20, and its end protrudes outside the case to serve as a connection pin. A horizontal U-shaped contact piece 22a constructed on the piece 22b is disposed at the bottom of the storage part 23. This is one connector to be combined.

On the other hand, the contact holder 1 formed by snap-fitting the connector 6 as described in the first embodiment is used as another connector to be combined, and this is housed in the storage chamber 23 of the case 20 as shown in FIG. The clamping piece 6b of the horizontal U-shaped clamping part 6' of No. 6 is placed on the contact piece 22a of the contact 22.

The contact holder 1 and the case 20 are integrated by a coupling means as exemplified in the second embodiment, and the contacts 6 and 22 are kept in contact with each other.

As a result of the above, the contact holder 1 can be used as a replacement connector and can be replaced. When the connector formed by the case 20 is soldered to a printed wiring board or the like using the leg pieces 22b, it is difficult to remove it. On the other hand, if ICs and the like are frequently attached and detached from the connector formed by the contact holder 1, the contacts 6 will reach the end of their service life due to wear and other problems in a short period of time. In this case, the contact holder 1 of the composite connector is replaced and regenerated.

Fourth Embodiment (See FIGS. 11 to 13) This embodiment shows an IC mounting type socket constructed based on the first embodiment.

As shown in the figure, a socket base is formed using the contact holder 1, and as described above, the contacts 6 are inserted into the upper and lower slots 2 and 3 using the horizontal U-shaped clamping portions 6', and are firmly clamped by the retaining wall 4 to implant the contacts. I do. The contact holder 1 is provided with a presser cover 17 and a lock lever 19 as in the previous embodiment. The contact 6 has a leg piece 6e hanging from the clamping piece 6b. The leg piece 6e has only the function of inserting into a connection hole or the like of a wiring board to establish a connection, and is not used as a press-fitting means. Therefore, there is no press-fitting claw for press-fitting, and further miniaturization is possible.

As shown in FIG. 10, the contact piece 6f is the clamping piece 6.
In addition to folding the end of a toward the base side in an inverted horizontal U-shape to form an S-shape as a whole, as shown in FIG. form. Both the S-shape and E-shape have horizontal U-shaped parts in two stages, with the lower horizontal U-shaped part functioning as a gripping part for the connector body, and the upper horizontal U-shaped part serving as a vertical flexure. A mounting portion having elasticity is formed.

Further, as shown in FIGS. 12 and 13, in the E-shaped contact and the S-shaped contact 6, the clamping pieces 6a, 6b are connected from the connecting piece 6c of the clamping pieces 6a and 6b forming the clamping part 6'. A short protrusion 6h with a locking claw that has a hair anchor effect.
are provided protrudingly, and slots 2 and 3 are provided on the side of the other retaining wall 4.
A planting hole 24 is provided between the clamping pieces 6a, 6.
While holding the retaining wall 4 at b, the protruding piece 6h is press-fitted into the implantation hole 24, and the retaining claw is bitten into the inner wall to strengthen the retaining force of the contact.

Effects of the Invention Since the present invention is configured as described above, the contact is pushed from the side into the contact holding wall formed by the bottom wall of the upper and lower slots using the upper and lower holding pieces of the horizontal L-shaped holding part. The assembly of the contact carrier holder and the contact group can be easily formed by simply assembling the contact carrier, and there is no possibility of deformation or twisting of the leg, as would be the case when a contact is implanted with a single pin into the bottom wall of the slot using its leg. , there is no risk of causing tilting, etc., and therefore the contact can be implanted in an appropriate posture and pitch. Further, it has the advantage that a group of contacts can be implanted in a series at one time, labor saving in the assembly process can be achieved, and cost can be reduced. The contact elastically clamps the contact retaining wall with a horizontal U-shaped clamping part that supports a contact piece that can be elastically displaced up and down, and engages with the contact retaining wall using an engaging claw provided on the clamping part. By holding the horizontal U-shaped clamping part to prevent the contact from coming out, the contact can be more firmly implanted into the contact holding wall, and the elastic contact piece can be stably supported in the upper slot by the horizontal U-shaped clamping part. can do.

Further, in the horizontal U-shaped clamping part of the contact that clamps the contact holding wall, the contact part connected to the clamping part can be stably supported in the slot in an appropriate posture.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional perspective view of a connector showing a first embodiment of the present invention, and FIG. 2 is a perspective view showing a second embodiment of the present invention.
FIG. 3 is a sectional view of the connector, FIG. 4 is a plan view of the case constituting the connector, FIG. 5 is a side view of the case with a portion cut away, and FIG. FIG. 7 is a partially cutaway side view of the contact holder that constitutes the connector, FIG. 8 is an exploded cross-sectional view of a composite connector showing a third embodiment of the present invention, and FIG. 9 is a partially cutaway side view of the holder. FIG. 10 is a partially cutaway perspective view of a connector according to a fourth embodiment of the present invention, and FIGS. 11 to 13 are enlarged cross-sectional views illustrating the contact fixing structure, respectively. FIG. DESCRIPTION OF SYMBOLS 1...Contact holder, 2...Upper slot, 3...Lower slot, 4...Contact holding wall, 6, 22...Contact, 6'...Horizontal U-shaped holding part, 6a, 6b... Holding piece, 6c... Connection piece, 6d... Engaging claw, 6e, 22b... Leg piece, 6
f, 22a...Contact piece, 8...Engagement step, 9...
...retainer.

Claims (1)

[Claims] 1. A large number of upper slots arranged in parallel with each other with a partition wall interposed therebetween, and a number of lower slots arranged in parallel with each other with a partition wall interposed therebetween are arranged vertically in correspondence with each other, and the upper slots and the lower slots are separated from each other in the vertical direction. A contact holding wall is formed at the bottom wall, and the other contact is provided with a horizontal U-shaped clamping part consisting of an upper clamping piece and a lower clamping piece, and the upper clamping piece of the horizontal U-shaped clamping part has a contact that can be elastically displaced up and down. the horizontal U-shaped clamping parts are inserted into both slots from the open ends of the upper and lower slots, and the contact holding wall is clamped by the elasticity of the upper clamping pieces and the lower clamping pieces; A connector characterized in that the horizontal U-shaped holding part is provided with an engaging pawl that engages with the contact holding wall held by the holding part to prevent the contact from coming off.