JP5329301B2 - Multi-core connector - Google Patents

Description

  The present invention relates to a multicore connector for connecting a connection object and a counterpart connection object.

  As Related Art 1, an IC socket having a contact for connecting an IC and a socket board is disclosed (for example, see Patent Document 1).

  The contacts disclosed in Patent Document 1 electrically connect a device side electrode in contact with an IC, a substrate side electrode provided to face the device side electrode and in contact with a socket board, and the device side electrode and the substrate side electrode. And an elastic member provided between the device side electrode and the substrate side electrode.

  Furthermore, the contact disclosed in Patent Document 1 includes an elastic support body sandwiched between a device-side insulating plate and a substrate-side insulating plate. The elastic support is bent in the direction of the connection plate with respect to the direction from the device-side insulating plate to the substrate-side insulating plate.

  As Related Art 2, an electrical connector is disclosed that includes an elastic sheet that is fitted into a fitting plate, a plurality of elastic terminals, and a plurality of metal ribbons that conduct the electrodes of the mounting circuit board and the semiconductor package. (For example, refer to Patent Document 2).

  The elastic terminal disclosed in Patent Document 2 protrudes in the direction of the semiconductor package from the elastic sheet at a predetermined interval. The metal ribbon is incorporated in each elastic connector so as to correspond to the mounting circuit board and the plurality of electrodes of the semiconductor package.

  As related art 3, a plurality of contact films using a frame plate as a support and a plurality of structural electrode bodies connected to electrodes to be inspected of the circuit device penetrating and supported by an insulating film made of a flexible resin, A sheet-like probe including a frame plate that supports a membrane is disclosed (for example, see Patent Document 3).

  As related art 4, an anisotropic film comprising a frame plate having an anisotropic conductive film arrangement hole formed therein and an elastic anisotropic conductive film arranged in the anisotropic conductive film arrangement hole and supported at the periphery thereof. A conductive connector is disclosed (see, for example, Patent Document 4).

JP 2003-185700 A JP 2002-8749 A JP 2006-138720 A JP 2005-56860 A

  In the IC socket of Patent Document 1, a gap is formed between the device-side insulating plate, the connection plate, and the elastic support, and a gap is formed between the substrate-side insulating plate, the connection plate, and the elastic support, so that there is an empty space. Since it is large, there is a problem that it is difficult to arrange a plurality of contacts at a narrow pitch.

  In addition, the IC socket of Patent Document 1 has a problem that the assembly work becomes complicated and the number of assembly steps increases because it is necessary to wind the elastic support so as to be sandwiched between the contacts.

  In the electrical connector of Patent Document 2, since the metal ribbon embedded in the elastic sheet collapses sideways when fitted, adjacent metal ribbons are short-circuited when the metal ribbon is arranged at a narrow pitch. There is a problem of high risk.

  In the sheet-like probe of Patent Document 3, there is a problem that the structure electrode body is irregularly deformed at the time of fitting and may be short-circuited, so that there is a limit to the correspondence to narrow pitch.

  In the anisotropic conductive connector of Patent Document 4, since the conductive portion is embedded in the insulating portion, the load at the time of fitting becomes high even if it can cope with a narrow pitch. There is a problem that the merit of using is lost.

  Therefore, an object of the present invention is to provide a multi-core connector that can simplify the shape of the elastic electrode and can easily cope with a narrow pitch.

  Another object of the present invention is to provide a multi-core connector that can simplify the assembling work and is excellent in assembling workability.

  Furthermore, another object of the present invention is to provide a multicore connector that enables a high density arrangement of a plurality of elastic electrodes.

  According to an embodiment of the present invention, a multi-core connector for connecting between parallel connection objects and a counterpart connection object, a plurality of elastic electrodes, a frame holding the elastic electrodes, and fixed to the frame The elastic electrode has a columnar elastic body, and extends in a circumferential direction on a circumferential surface of the elastic body and has a predetermined interval in a first direction which is a longitudinal direction of the elastic body. A plurality of conductors and support portions formed at both ends of the elastic body, wherein the frame extends in parallel with each other at a predetermined interval in a second direction orthogonal to the first direction; And a second frame portion, and a third frame portion connecting between one end portions of the first and second frame portions in the second direction, and the first and second frames. On the inner surfaces of the first and second frame portions facing each other, a groove-like label extending in the extending direction of the first and second frame portions is provided. The support portions formed at both ends of the elastic body in the first direction are inserted into the rail portion, and the other end portions of the first and second frame portions are inserted into the rail portion. A plurality of the elastic electrodes are arranged and held on the frame by fixing the presser plate therebetween, and the elastic electrodes are in contact with the adjacent elastic electrodes and are arranged between the second elastic electrodes. The most important feature is a multi-core connector having a pitch interval defining portion that defines a pitch interval in the direction.

  The elastic electrode has a metal column penetrating in the first direction of the elastic body, and the metal column protrudes outward from both ends of the elastic body in the first direction. The support portion may be formed.

  The pitch interval defining portion may be provided on the support portion.

  The support portion has a U-shaped portion formed in a U-shape from the tip of the support portion, and the elastic electrode is brought into contact with the support portion of the elastic electrode adjacent to the U-shaped portion. You may make it form the said pitch space | interval definition part which prescribes | regulates the said pitch space | interval in between.

  The elastic body of the elastic electrode has a protrusion formed on one opposing surface in the second direction with the adjacent elastic electrode, and the protrusion hits the elastic body of the adjacent elastic electrode. It is good also as the said pitch space | interval definition part which touches.

  The elastic body of the elastic electrode may have a recess in which the tip of the protruding portion of the adjacent elastic electrode is fitted on the other facing surface of the adjacent elastic electrode.

  The presser plate may be fixed by inserting both ends of the presser plate into the rail portion.

  As for the said elastic electrode, the insulating film is affixed on the surrounding surface of the said elastic body, and the said conductor may be formed on this insulating film.

  According to the multi-core connector according to the embodiment of the present invention, since the assembly is performed by pressing and arranging the support portions of the plurality of elastic electrodes by the holding plate, the assembling work can be simplified, and the assembling workability can be simplified. There is an advantage that an excellent configuration can be obtained.

  In addition, according to the multi-core connector according to the embodiment of the present invention, since the pitch interval defining portion is formed in the elastic electrode, the pitch interval between the adjacent elastic electrodes can be reduced. There is an advantage that the correspondence becomes easy and the arrangement of high-density elastic electrodes becomes possible.

1 is a perspective view showing a multi-core connector according to a first embodiment of the present invention. It is the perspective view which showed the state which decomposed | disassembled the multi-core connector shown in FIG. 1, and showed the flame | frame, one elastic electrode, and the pressing board. It is a perspective view which shows the state before fixing an elastic electrode with the holding plate of the multi-core connector shown in FIG. It is the side view which expanded and showed the state after inserting the press plate in the flame | frame shown in FIG. 3 from the other edge part side of the 1st and 2nd frame part. It is the perspective view which expanded and showed one elastic electrode of the multi-core connector shown in FIG. FIG. 6 is a cross-sectional view of the elastic electrode shown in FIG. 5 taken along the line VI-VI, with the elastic body and the conductor film exploded. FIG. 6 is an enlarged perspective view showing one side of the elastic electrode shown in FIG. 5 in the longitudinal direction. FIG. 2 is a perspective view in which a part of the frame of the multicore connector shown in FIG. FIG. 2 is a cross-sectional view illustrating a part of the multi-core connector illustrated in FIG. 1 in a cross-section and showing a state before connection with a connection target and a counterpart connection target. It is sectional drawing which showed the state which connected between the connection target object and the other party connection target object with the multicore connector shown in FIG. It is a perspective view of the state before the assembly | disassembly which decomposed | disassembled the multi-core connector, the connection target object, the other party connection target object, and assembly component which were shown in FIG. It is a perspective view which shows the state which assembled the multicore connector shown in FIG. 11, the connection target object, the other party connection target object, and an assembly component. FIG. 5 is a perspective view showing a modification of the elastic electrode in the multi-core connector according to the first embodiment of the present invention and enlarging one side in the longitudinal direction of the elastic electrode. 5A shows a modified example of the elastic electrode shown in FIG. 5, and is a perspective view showing a state where the elastic electrode shown in FIG. 5 is viewed from the back side, and FIG. 5B shows the elastic electrode shown in FIG. It is the perspective view seen from the surface side. It is sectional drawing which showed the state before connecting with a connection target object and the other party connection target object by the multi-core connector shown in FIG. 14 in a partial cross section.

  FIG. 1 shows an embodiment of a multi-core connector according to the present invention. FIG. 2 shows a state in which the multicore connector shown in FIG. 1 is disassembled. In FIG. 2, only one elastic electrode of the plurality of elastic electrodes is shown together with the frame and the pressing plate. FIG. 3 shows a state before the plurality of inserted elastic electrodes shown in FIG. 1 are fixed to the frame by the pressing plate. FIG. 4 shows a state after the presser plate is inserted into the frame shown in FIG. 3 as viewed from the other end side of the first and second frame portions.

  1 to 4, the multi-core connector 1 includes a plurality of elastic electrodes 2, a frame 3 that holds the elastic electrodes 2 in an array, and a presser plate 4 that fixes the plurality of elastic electrodes 2 to the frame 3. Have.

  FIG. 5 shows the elastic electrode 2 shown in FIG. 2 in an enlarged manner. FIG. 6 shows a state where the elastic electrode 2 shown in FIG. FIG. 7 is an enlarged view of one end portion in the longitudinal direction of the elastic electrode 2 shown in FIG.

  5 to 7, the elastic electrode 2 includes a columnar elastic body 21, a conductor film 22 disposed on the peripheral surface of the elastic body 21, and both ends in the longitudinal direction of the elastic body 21. And metal struts 25 extending outward.

  In the following description, the longitudinal direction of the elastic body 21 is referred to as a first direction A, and the width direction orthogonal to the first direction A of the elastic body 21 is referred to as a second direction B. The vertical direction perpendicular to the two directions A and B is referred to as a third direction C (see FIGS. 5 and 6) and will be described.

  The elastic body 21 includes a first surface 21a and a second surface 21b facing each other in the third direction C, and a third surface 21c and a fourth surface facing each other in the second direction B. 21d.

  The first surface 21a and the second surface 21b form a flat surface parallel to each other. The third surface 21c and the fourth surface 21d are parallel to each other and form a flat surface. A connection portion between the first surface 21a and the third surface 21c is a first curved surface 21e formed in an arc shape. A connection portion between the second surface 21b and the third surface 21c is a second curved surface 21f formed in an arc shape.

  When the elastic body 21 is viewed in the cross section shown in FIG. 6, the first to fourth surfaces 21a, 21b, 21c, 21d, and the first and second curved surfaces 21e, 21f have a substantially inverted D-shaped cross section. It has become.

  Further, as shown in FIGS. 5 and 7, the elastic body 21 includes a pair of flat first members formed in parallel with the second and third direction B-C planes at both ends in the first direction A. 5 surface 21g (see FIGS. 5 and 7). 5 and 7, only the fifth surface 21g at one end of the elastic body 21 is illustrated.

  The pair of fifth surfaces 21g are side surfaces formed to face each other in parallel in the first direction A. In addition, the 4th surface 21d and the 5th surface 21g are surfaces where the conductor film 22 is not affixed.

  As best shown in FIG. 6, the conductor film 22 includes an insulating film (hereinafter referred to as a film) 23 disposed on the peripheral surface of the elastic body 21, and a plurality of films disposed on the film 23. And a long strip-shaped conductor 24.

  The film 23 is formed on the peripheral surface of the elastic body 21, that is, the first to third surfaces 21a, 21b, 21c, and the first and second curved surfaces 21e, 21f of the elastic body 21 via an adhesive. It is pasted. A plurality of conductors 24 are arranged on the outer surface of the film 23 in the circumferential direction of the elastic body 21 and with a predetermined interval in the first direction A.

  That is, on the outer surface of the film 23, the first and third surfaces 21a, 21b, 21c of the elastic body 21, and the second and third directions B, so as to face the first and second curved surfaces 21e, 21f, In C, a plurality of conductors 24 are disposed.

  The conductor 24 includes a first transmission path 24a, a second transmission path 24b, a third transmission path 24c, a fourth transmission path 24e, and a fifth transmission path 24f.

  The first transmission path 24 a is disposed on the film 23 so as to face the first surface 21 a of the elastic body 21. The second transmission path 24 b is disposed on the film 23 so as to face the second surface 21 b of the elastic body 21. The third transmission path 24 c is disposed on the film 23 so as to face the third surface 21 c of the elastic body 21. The fourth transmission path 24 e is disposed on the film 23 so as to face the first curved surface 21 e of the elastic body 21. The fifth transmission path 24f is disposed on the film 23 so as to face the second curved surface 21f of the elastic body 21.

  The first transmission path 24a and the second transmission path 24b serve as contact portions (electrode portions) that come into contact with contact portions (electrode portions) of a connection target and a counterpart connection target, which will be described later. The first transmission path 24a, the second transmission path 24b, the third transmission path 24c, the fourth transmission path 24e, and the fifth transmission path 24f are made continuously by the same thin film conductive material. Yes.

  In the elastic body 21 in the present embodiment, the first and second curved surfaces 21e and 21f are connected to the first and second surfaces 21a and 21b and the third surface 21c. It is not necessary to form the first and second curved surfaces 21e and 21f into curved surfaces. For example, the first surface 21a and the second surface 21b are directly connected by the third surface 21c. Then, the first transmission path 24a is formed on the outer surface of the film 23 facing the first surface 21a, the second transmission path 24b is formed on the outer surface of the film 23 facing the second surface 21b, and the third surface 21c. You may make it comprise the conductor 24 so that the 3rd transmission path 24c may be formed in the film 23 which opposes.

  The metal strut 25 has first and second support portions 26a at the distal end portion of the extending portion of the metal strut 25 extending outward in the first direction A from the pair of fifth surfaces 21g of the elastic body 21. , 26b are formed.

  Further, the metal strut 25 is elastic so that the intermediate portion 25c connecting the pair of metal struts 25 extending out of the elastic body 21 with respect to the first direction A penetrates the elastic body 21. It is buried in one piece.

  The first support portion 26a of the metal support column 25 has a first pitch interval defining portion 27a. The first pitch interval defining portion 27a is a U-shaped portion formed by bending the metal support column 25 into a U shape from the tip of the first support portion 26a. The second support portion 26b has a second pitch interval defining portion 27b. The second pitch interval defining portion 27b is a U-shaped portion formed by bending the metal support column 25 into a U shape from the tip of the second support portion 26b.

  The first and second pitch interval defining portions 27 a and 27 b are in contact with the first and second pitch interval defining portions 27 a and 27 b of the adjacent elastic electrodes 2 arranged in the frame 3, thereby elastic electrodes. The pitch (second direction B) interval between the two is defined.

  That is, when the plurality of elastic electrodes 2 are inserted and arranged in the frame 3, the first pitch interval defining portions 27a of the adjacent elastic electrodes 2 in the second direction B come into contact with each other, so The pitch interval between the electrodes 2 is defined. Similarly, when the second pitch interval defining portions 27b of the elastic electrodes 2 adjacent in the second direction B are in contact with each other, the pitch interval between the elastic electrodes 2 is defined.

  Therefore, the first and second pitch interval defining portions 27a and 27b have the U-shaped folded portion protruding forward from the fourth surface 21d of the elastic body 21 in the second direction B. Note that the U-shaped portions of the first and second pitch interval defining portions 27a and 27b can form folded portions by press working.

  Returning to FIGS. 1 to 4, the frame 3 includes a first frame portion 31 and a second frame portion 32 extending in parallel with each other at a predetermined interval, and first and second frame portions 31 and 32. 2 and a third frame portion 33 that connects one end portions in the direction B.

  The first frame portion 31 and the second frame portion 32 are arranged so as to have a predetermined interval in the first direction A and extend in parallel to each other in the second direction B. When viewed from the top surface of FIGS. 1 and 2, the frame 3 has a substantially inverted U-shape formed by the first to third frame portions 31, 32, and 33.

  On the upper surface on the outer peripheral side of the first to third frame portions 31, 32, 33, the first outer frame portion 31a, the second outer frame portion 32a, and the third outer frame are slightly higher than the upper surface. A frame portion 33a is formed. The first to third outer frame portions 31a, 32a, and 33a are integrated with the first to third frame portions 31, 32, and 33, respectively.

  As shown in FIGS. 1 to 4, the inner surface of the first frame portion 31 has a groove-shaped first portion extending in a direction parallel to the extending direction of the first frame portion 31 in the second direction B. One rail portion 34a (see FIG. 4) is formed. Further, on the inner surface of the second frame portion 32, a groove-shaped second rail extending in the second direction B in a direction parallel to the extending direction (second direction) of the second frame portion 32. A portion 34b (see FIG. 4) is formed.

  The first and second rail portions 34 a and 34 b extend in the second direction B between the inner side surfaces of the third frame portion 33 and the end portions on the opening side of the first frame portion 31 and the second frame portion 32. It extends. The first and second rail portions 34a and 34b face each other in the first direction A.

  The first support portions 26a of the plurality of elastic electrodes 2 are inserted into the first rail portion 34a. The second support portions 26b of the plurality of elastic electrodes 2 are inserted into the second rail portion 34b. Between the end portions on the opening side of the first and second frame portions 31 and 32, the plurality of elastic electrodes 2 are inserted into the first and second rail portions 34 a and 34 b, and then the presser plate 4 is inserted. A plurality of elastic electrodes 2 are arranged and held on the frame 3 by fixing the presser plate 4 to the frame 3.

  Furthermore, a pair of first screw holes 31 d for passing screws (not shown) are formed in the first frame portion 31 in the vicinity of one end portion and the other end portion in the second direction B. . The second frame portion 32 is formed with a pair of second screw holes 32d through which screws (not shown) are passed in the vicinity of one end portion and the other end portion in the second direction B.

  Further, a first fixing hole 34 e is formed on the end side of the opening end of the first outer frame portion 31 a of the frame 3. Further, a second fixing hole 34 f is formed in the second outer frame portion 32 a on the end portion side of the opening end of the frame 3. A screw 5 (see FIG. 1) is inserted into each of the first and second fixing holes 34e and 34f.

  As shown in FIGS. 1 to 4, the pressing plate 4 includes a pressing portion 41 and a pair of first and second guide portions 42 a and 42 b formed at both ends in the first direction A.

  The pressing portion 41 is set to have a dimension that enters between the pair of rail portions 34 a and 34 b in the first direction A. The first and second guide portions 42a and 42b are connected to the groove-shaped first and second rail portions 34a and 34b formed in the first frame portion 31 and the second frame portion 32 from the opening end side. Inserted.

  The plate thickness dimension of the pressing portion 41 in the third direction C is the same as the plate thickness dimension of the first frame portion 31, the second frame portion 32, and the third frame portion 33 of the frame 3 in the third direction C. It is a dimension. The plate thickness dimension in the third direction C of the first and second guide portions 42a and 42b is the same as the groove width dimension of the first and second rail portions 34a and 34b of the frame 3 in the third direction C. Or it is a little small size.

  The portion of the metal column 25 that extends outward from the fifth surface 21g of the elastic body 21 has a dimension in the third direction C that is the first and second rail portions 34a and 34b in the third direction C. The size is the same as or slightly smaller than the groove width.

  Further, the first and second guide portions 42a, 42b of the presser plate 4 and the projecting dimension in the first direction A from the fifth surface 21g of the elastic body 21 of the first and second pitch interval defining portions 27a, 27b. The protrusion dimension in the first direction A is the same as or slightly smaller than the groove depth dimension of the first and second rail portions 34a, 34b in the first direction A.

  Accordingly, the first and second support portions 26a and 26b having the first and second pitch interval defining portions 27a and 27b of the metal support column 25, and the first and second guide portions 42a and 42b of the presser plate 4, respectively. Has a shape that can be inserted into the first and second rail portions 34a, 34b of the frame 3.

  Further, first and second pressers for fixing the presser plate 4 and the frame 3 to each of the first and second guide portions 42a and 42b of the presser plate 4 through screws 5 (see FIG. 1). Plate fixing holes 42e and 42f (see FIGS. 2 and 3) are formed.

  Below, the operation | work which assembles the multicore connector 1 is demonstrated.

  In the assembly work of the multi-core connector 1, first, the elastic electrode 2 is positioned between the opening side ends of the frame 3, as shown in FIG. Next, the first and second support portions 26a and 26b of the elastic electrode 2 are inserted into the first and second rail portions 34a and 34b, respectively, and then the plurality of elastic electrodes 2 are sequentially attached to the frame 3. Insert and arrange in direction B1 (see arrow B1 in FIG. 3).

  The elastic electrode 2 arranges the plurality of elastic electrodes 2 such that the conductor film 22 faces forward (B1 direction). After arranging the plurality of elastic electrodes 2 on the frame 3, as shown in FIG. 3, the first and second guide portions 42a and 42b of the holding plate 4 are inserted into the first and second rail portions 34a and 34b. Then, the presser plate 4 is pushed into the first and second frames 3 to a predetermined position in one direction B1. By this operation, the plurality of elastic electrodes 2 are arranged in a state in which the first and second pitch interval defining portions 27 a and 27 b adjacent to each other toward the third frame portion 33 are pressed.

  At this time, the hole portions of the first and second holding plate fixing holes 42e and 42f of the holding plate 4 and the first and second fixing holes 34e and 34f of the first and second outer frame portions 31a and 32a are formed. Match. Therefore, the presser plate 4 is fixed to the opening end side ends of the first and second frame portions 31 and 32 by inserting the screws 5 into these holes and screwing them together. By this assembly operation, the multi-core connector 1 of FIG. 1 is assembled.

  FIG. 8 is an enlarged view of a part of the assembled multi-core connector 1 shown in FIG. 1, and the upper surface side of the frame 3 on the first rail portion 34a side is removed. FIG. 9 is an enlarged view of a part of the multi-core connector 1 in which FIG. 8 is a cross section taken along a plane perpendicular to the first direction A, and shows a state before the connection target and the counterpart connection target are connected. It is shown together with the partner connection object.

  As shown in FIG. 8, the first pitch interval defining portion 27 a of the elastic electrode 2 is held by the frame 3 in contact with the first pitch interval defining portion 27 a of the adjacent elastic electrode 2. At this time, the second pitch interval defining portion 27b of the elastic electrode 2 (not shown in FIG. 8) is inserted and held in the same manner in the second rail portion 34b.

  The elastic electrode 2 is arranged on the frame 3 by arranging the third surface 21c and the fourth surface 21d of the elastic body 21 on the third surface 21c and the fourth surface 21d of the adjacent elastic electrode 2 with a predetermined pitch. Is retained.

  Therefore, in the frame 3, a plurality of elastic electrodes 2 are arranged at a predetermined pitch interval in the second direction B in a space surrounded by the first to third frame portions 31, 32, 33 and the presser plate 4. Is done.

  As shown in FIG. 9, the elastic electrode 2 is inserted into the frame in a third direction C so as to maintain a posture in which the first transmission path 24a is on the upper side and the second transmission path 24b is on the lower side. 3 is fixed. In the elastic electrode 2, the first transmission path 24a protrudes upward from the upper surfaces of the first to third frame parts 31, 32, 33, and the second transmission path 24b extends to the first to third frame parts 31, The dimension in the third direction C is designed so as to protrude downward from the lower surfaces of 32 and 33.

  In a state where the presser plate 4 is fixed to the frame 3 with screws 5, the pitch interval is defined in the second direction B by the first and second pitch interval defining portions 27a and 27b, so that the plurality of elastic electrodes 2 have a high density. It is fixed to the frame 3.

  FIG. 9 shows an example in which an IC package (hereinafter referred to as a package) 61 as a connection target and a main board 62 as a counterpart connection target are connected by the multicore connector 1.

  In the operation of mounting the multi-core connector 1 between the package 61 and the main board 62, the multi-core connector 1 and the third package C, which are positioned on the upper side in the third direction C, as shown in FIG. It is installed between the main board 62 positioned on the lower side in the direction C.

  A plurality of contact portions 61p corresponding to the number of conductors 24 disposed on each of the plurality of elastic electrodes 2 are disposed on the bottom surface of the package 61 facing the multicore connector 1.

  On one surface 62f of the main board 62, a plurality of contact portions 62p made of LGA (Land Grid Array) are arranged. The contact portions 62p of the main board 62 are provided in a number corresponding to the number of elastic electrodes 2 provided on each of the plurality of elastic electrodes 2.

  FIG. 10 shows a state where the package 61 and the main board 62 are connected by the multi-core connector 1. FIG. 11 shows the multicore connector 1, the package 61, the main board 62, and the assembled parts in an exploded state.

  Referring to FIG. 11, a square plate-shaped first stiffener 71 is provided on a package 61. A square plate-shaped second stiffener 72 is provided below the main board 62. The first stiffener 71 is formed with screw holes 71a at the four corners. The second stiffener 72 is formed with screw holes 72a at the four corners.

  The package 61 is installed inside the first to third outer frame portions 31 a, 32 a, 33 a of the frame 3 and on the first to third frame portions 31, 32, 33 of the frame 3. The first to third outer frame portions 31 a, 32 a, and 33 a serve to position the package 61.

  The multi-core connector 1, the package 61 and the main board 62 include a screw hole 71 a formed in the first stiffener 71, first screw holes 31 d and 32 d in the frame 3, and a screw hole 62 a formed in the main board 62. The screw 8 that passes through the screw hole 72 a formed in the second stiffener 72 is screwed together with the nut 9 to be integrally fixed.

  Therefore, in such mounting work, after the package 61 is connected to the upper surface of the multi-core connector 1 and the main board 62 is connected to the lower surface of the multi-core connector 1, the first and second stiffeners 71, 72 from above and below. Are fastened and fixed with screws 8 and nuts 9.

  When the elastic electrode 2 is pushed in the third direction C by the main board 62 and the package 61, the portions protruding upward and downward from the upper and lower surfaces of the first to third frame portions 31, 32, 33 are third. In the direction C.

  After the multi-core connector 1, the package 61, and the main board 62 are fixed together, the first transmission path 24a of the conductor 24 is packaged by the reaction force of the elastic body 21 of the elastic electrode 2 as shown in FIG. 61 contacts with the contact 61p. At the same time, the second transmission path 24 b of the elastic electrode 2 contacts the contact portion 62 p of the main board 62.

  According to this multi-core connector 1, the elastic electrode 2 is inserted into the first and second rail portions 34 a and 34 b of the frame 3, and the first and second guide portions 42 a and 42 b of the holding plate 4 are inserted. Since it is assembled only by pressing and fixing with the presser plate 4, the assembling work becomes easy.

  Further, since the elastic electrodes 2 can be arranged at a narrow pitch interval in the second direction B, it is easy to cope with a narrow pitch between the plurality of elastic electrodes 2, and the elastic electrodes 2 are arranged at a high density on the frame 3. The multi-core connector 1 can be designed compactly.

  The material of the elastic body 21 is selected according to the mounting restrictions of the package 61 and the characteristics required for the multi-core connector 1. As an example, when a gel material is employed as the elastic body 21, assuming that the Poisson's ratio of the gel of the elastic body 21 is 0.4, for example, the thickness of the elastic body 21 having a natural thickness of 1.0 mm is 0. When compressed to 5 mm, the height extends 0.2 mm. Thus, the elastic body 21 can be connected using the up-and-down elasticity generated by pressing.

  The elastic body 21 is obtained by solidifying particles in a colloidal solution in a jelly shape, and employs a silicon-based or acrylic-based member. The conductor 24 can be made of a thin metal plate having a large elastic modulus. As the metal material of the conductor 24, nickel, nickel alloy, monel, nickel panadium, copper, phosphor bronze, or the like is employed.

  Moreover, the conductor 24 can arrange | position a thin film conductor by sputtering the metal particle which is a electrically conductive material on the outer surface of the film 23. FIG. The conductor 24 can be disposed by performing electrolytic plating or electroless plating on the film 23 instead of sputtering. The thickness of each conductor 24 can be several microns.

  Further, when the package 61 is used at a high temperature, or when the conductor 24 is required to have high durability, it is desirable to make the elastic body 21 from rubber having excellent durability and low compressive residual strain. When a rubber material is employed, a rubber material having silicon heat resistance is used.

  In addition, the conductor 24 does not use the film 23, and metal particles that are conductive materials are directly applied to the first to third surfaces 21a, 21b, and 21c, and the first and second curved surfaces 21e and 21f of the elastic body 21. It is also possible to dispose the conductor 24 by sputtering, or dispose the conductor 24 by electrolytic plating or electroless plating.

  The frame 3 and the presser plate 4 can be manufactured by molding a resin material. The presser plate 4 may be made of a metal material.

  The metal support 25 is made of stainless steel as an example. The intermediate portion 25c of the metal support 25 is embedded in the elastic body 21 at the same time when the elastic body 21 is molded. When the elastic body 21 is a gel material, the elastic body 21 is formed by a mold insulator with the intermediate portion 25c of the metal support 25 as a framework, and the conductor film 22 is wound around the circumferential surface of the elastic body 21. The film 23 and the elastic body 21 are fixed with an adhesive.

  The elastic body 21 forms a plurality of grooves by removing the first and second surfaces 21a and 21b and the first and second curved surfaces 21e and 21f between the conductors 24 in a groove shape. At the same time, the film 23 facing the groove can be cut out. When the groove is formed in this way, the deformability of the first and second transmission paths 24a and 24b constituting the electrode portion of each conductor 24 is improved, and stable contact with the package 61 and the main board 62 is achieved. Is obtained.

  FIG. 13 shows a modification of the elastic electrode 2. The elastic electrode 2 in FIG. 13 is different only in the shape of the conductor 24 of the elastic electrode 2 shown in FIGS.

  Therefore, the same portions as those of the elastic electrode 2 shown in FIGS.

  Referring to FIG. 13, the conductor 24 has first and second transmission paths 24 a ′ and 24 b ′ on the first and second surfaces 21 a and 21 b of the elastic body 21 from the fourth surface 21 d of the elastic body 21. The film 23 is arranged on the film 23 so that the tip is located at a slightly separated position.

  In the high-density multi-core connector 1, as shown in FIG. 10, the elastic body 21 is compressed and deformed by the package 61 and the main board 62, and the space between the adjacent elastic electrodes 2 becomes extremely small. It is also assumed that the conductors 24 of the elastic electrode 2 are short-circuited.

  However, since the first and second transmission paths 24 a ′ and 24 b ′ of the conductor 24 are disposed only up to the vicinity of the fourth surface 21 d of the elastic body 21, a plurality of elastic electrodes 2 are provided on the frame 3. When the elastic body 21 is deformed in a state where it is inserted and held, a short circuit with the conductor 24 of the adjacent elastic electrode can be prevented.

  FIG. 14A shows a modification of the elastic electrode 2. Since the elastic electrode 2 has the same configuration as the elastic electrode 2 described with reference to FIG. 5 except for a part of the elastic body 21, the same reference numerals are given to the same portions and description thereof is omitted.

  Referring to FIG. 14A, the elastic body 21 of the elastic electrode 2 has a pitch interval defining portion 28 on the fourth surface 21 d of the elastic body 21. The pitch interval defining portion 28 is a plurality of protrusions protruding onto the fourth surface 21 d of the elastic body 21. When the plurality of elastic electrodes 2 are arranged and held on the frame 3, the pitch interval defining portion 28 contacts the film 23 between the third transmission paths 24 c of the adjacent elastic electrodes 2. That is, the tip of the pitch interval defining portion 28 of one elastic electrode 2 is in contact with the outer surface of the film 23 of the other elastic electrode 2.

  Therefore, when the plurality of elastic electrodes 2 are arranged and held on the frame 3, the plurality of adjacent elastic electrodes 2 are arranged with a predetermined pitch interval.

  Therefore, even when the elastic body 21 is compressed and deformed by the package 61 and the main board 62, the conductors 24 of the adjacent elastic electrodes 2 are positioned without short-circuiting the conductors 24 of the adjacent elastic electrodes 2. It is possible to reliably prevent a short circuit between them.

  The elastic electrode 2 shown in FIG. 14B has the pitch interval defining portion 28 of the elastic electrode 2 shown in FIG. 14A, and further a film between the third transmission lines 24c of the conductor 24 of the elastic electrode 2. A hole 29 is formed in 23.

  14A is formed in the film 23 between the third transmission paths 24c of the conductor 24 of the elastic electrode 2 shown in FIG. 14B. It contacts the elastic body 21 of the adjacent elastic electrode 2 through the hole 29.

  Therefore, when a plurality of elastic electrodes 2 are arranged, positioning can be accurately performed by inserting the pitch interval defining portion 28 into the hole 29 of the film 23. Further, when the elastic body 21 is deformed in a state where the plurality of elastic electrodes 2 are fixed to the frame 3, it is possible to prevent a short circuit with the conductor 24 of the adjacent elastic electrode.

  FIG. 15 shows a modification of the elastic body 21 in the elastic electrode 2 having the pitch interval defining portion 28 and the hole 29 shown in FIGS. 14A and 14B, and the elastic electrode 2 is fixed to the frame 3. In this state, the package 61 and the main board 62 are shown in cross section.

  As shown in FIG. 15, the elastic body 21 is located at a position corresponding to the hole 29 of the film 23 on the opposing surface of the adjacent elastic electrodes 2, that is, the opposing surface between the third transmission paths 24 c of the elastic electrodes 2. A recess 29a into which the tip of the pitch interval defining portion (projection) 28 of the elastic electrode 2 is fitted is formed. The protrusion 28 of the adjacent elastic electrode 2 is fitted into the recess 29 a of the elastic electrode 2.

  In this way, the adjacent elastic electrodes 2 are positioned reliably by the elastic electrodes 2 being arranged at intervals with a predetermined pitch by fitting the tips of the pitch interval defining portions 28 into the recesses 29a. A short circuit between the conductors 24 of the adjacent elastic electrodes 2 can be reliably prevented.

  14 and 15 show an example in which the pitch interval defining portion between the elastic electrodes 2 is provided on the first and second support portions 26a and 26b of the metal support 25 and provided on the elastic body 21. However, the pitch interval between the elastic electrodes 2 may be defined only by the pitch interval defining portion 28 of the elastic body 21 except for the pitch interval defining portions 27 a and 27 b of the metal support column 25.

  The multi-core connector of the present invention is an inspection multi-core connector for mounting or inspecting by connecting an inspection IC package to a main board, or a wiring board such as an IC chip or a flexible printed wiring board and a subcarrier. It can be applied to the use as a multi-core connector for electrical connection used to connect the two.

DESCRIPTION OF SYMBOLS 1 Multi-core connector 2 Elastic electrode 3 Frame 4 Holding plate 5 Screw 9 Nut 21 Elastic body 21a 1st surface 21b 2nd surface 21c 3rd surface 21d 4th surface 21e 1st curved surface 21f 2nd curved surface 21g 5th surface 22 Conductor film 23 Film 24 Conductor 24a 1st transmission line 24b 2nd transmission line 24c 3rd transmission line 24e 4th transmission line 24f 5th transmission line 25 Metal support | pillar 25c Middle part of metal support | pillar 26a 1st support part 26b 2nd support part 27a 1st pitch space | interval definition part (U-shaped part)
27b Second pitch interval defining portion (U-shaped portion)
28 Pitch interval defining part (projection)
31 1st frame part 32 2nd frame part 33 3rd frame part 31a 1st outer frame part 31d 1st screw part 32a 2nd outer frame part 32d 2nd screw part 33a 3rd outer frame Part 34a first rail part 34b second rail part 41 pressing part 42a first guide part 42b second guide part 42e first presser plate fixing hole 42f second presser plate fixing hole 61 connection object (package) )
61p, 62p contact part 62 object to be connected (main board)
62a, 71a, 72a Screw hole 71 First stiffener 72 Second stiffener A First direction B Second direction B1 One direction of second direction C Third direction

Claims (7)

A multi-core connector for connecting between parallel connection objects and a counterpart connection object, having a plurality of elastic electrodes, a frame for holding the elastic electrodes, and a pressing plate fixed to the frame,
The elastic electrode includes a columnar elastic body, a conductor extending in a circumferential direction on a circumferential surface of the elastic body, and a plurality of conductors formed at a predetermined interval in a first direction which is a longitudinal direction of the elastic body, and the elastic electrode Having support portions formed at both ends of the body,
The frame includes first and second frame portions extending in parallel to each other at a predetermined interval in a second direction orthogonal to the first direction, and the second direction of the first and second frame portions. A third frame portion connecting between the one end portions in
Groove-shaped rail portions extending in the extending direction of the first and second frame portions are formed on inner surfaces of the first and second frame portions facing each other,
In the rail portion, the support portions formed at both ends of the elastic body in the first direction are inserted, and the presser plate is fixed between the other end portions of the first and second frame portions. A plurality of the elastic electrodes are arranged and held in the frame,
It said elastic electrode have a pitch space defining portion defining a pitch interval in the second direction between the adjacent abuts against the elastic electrode adjacent elastic electrodes,
The elastic electrode further includes a metal column penetrating in the first direction of the elastic body, and the metal column protrudes outward from both ends of the elastic body in the first direction. Forming the support part .   The multi-core connector according to claim 1, wherein the pitch interval defining portion is provided in the support portion. The support portion has a U-shaped portion formed in a U-shape from the tip of the support portion, and the elastic electrode is brought into contact with the support portion of the elastic electrode adjacent to the U-shaped portion. The multi-core connector according to claim 2, wherein the pitch interval defining portion that defines the pitch interval therebetween is formed. The elastic body of the elastic electrode has a protrusion formed on one opposing surface in the second direction with the adjacent elastic electrode, and the protrusion hits the elastic body of the adjacent elastic electrode. The multi-core connector according to any one of claims 1 to 3 , wherein the pitch interval defining portion is in contact. The elastic body of the elastic electrodes, the other opposing surfaces of the resilient electrode adjacent, according to claim 4, characterized in that a recess which fits the tip of the projection of the adjacent elastic electrode Multi-core connector. The pressing plate, multi-core connector according to any one of claims 1 to 5, characterized in that both ends of the pressing plate is fixed by inserting the rail section. It said elastic electrode, the are attached insulating film on the peripheral surface of the elastic body, in any one of claims 1 to 6, characterized in that the conductor on the insulating film is formed The multi-core connector described.

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