JP4772892B2 - Double-sided connector - Google Patents

Description

  The present invention relates to a double-sided connection type connector having a structure capable of electrically connecting a connection object having a connection portion arranged mainly at a high density on both main surface sides.

  The connector as the prior art 1 is, for example, a plurality of terminal portions (contacts) formed by forming a conductive film on the surface of an insulating elastic material so that each conductive film protrudes from both main surfaces. The thing of the structure supported on the frame (frame) using the adhesive tape (refer patent document 1) is mentioned.

  As a connector of Prior Art 2, a connector for connecting a connection object and a counterpart connection object is disclosed (for example, see Patent Document 2).

  This connector includes a contact, a plate-like base insulator holding the contact, and a pair of frames holding the base insulator. The contact includes an elastic body and a conductor disposed on the elastic body. The frame has positioning pins. The positioning pin is inserted into the positioning hole of the base insulator.

JP 2005-228504 A (summary, FIG. 1) Japanese Patent Laying-Open No. 2006-054149 (Summary, FIG. 7)

  In the case of the double-sided connection type connector described in Patent Document 1 described above, since the frame has an integral structure, each contact is elastic in the connection state with the connection object by pressing operation if the connection location of the connection object is high density. When deforming, the ribs provided to partition each contact on the flat surface that often becomes the bottom of the frame are deformed or damaged, or the contact is disconnected or short-circuited, resulting in poor contact. There is a problem that it ends up.

  FIG. 13 is a side view of the basic structure shown in order to explain a problem that occurs when the double-sided connection type connector (Patent Document 1) is connected to an object to be connected. FIG. FIG. 2B relates to the schematic diagram shown, and FIG. 2B relates to a partially enlarged view shown partially transparent in order to explain the action of the force applied to each contact 4. Further, FIG. 14 is a side view partially showing a state in which each contact 4 is deformed in a connection state of the double-sided connection type connector (Patent Document 1) with an object to be connected.

  First, the basic structure of the double-sided connection type connector will be briefly described with reference to FIG. Each contact 4 here is configured as a unit in which a conductor 4a is formed on the surface of an insulating elastic body 4b. About the frame 6 holding these plural things, while being able to store the package (one connection object) 5 having the connection object storage port 6b recessed on one side and provided with a plurality of pads 5a, Positioning pins 6d that are integrally provided at predetermined positions in the corners in the diagonal direction on the other side are provided in the corners in the diagonal direction of the printed circuit board (the other connection object) 1 on which the plurality of pads 1a are arranged. It can be inserted into the positioning hole 1b. In addition, each contact 4 is attached to and held by a slit portion that is partitioned by a rib 6a and is arranged on the main portion of the bottom portion (flat surface) of the connection target storage port 6b of the frame 6. A down stopper portion 6c serving as a locking portion when the connection target (package 5) is stored is formed around the periphery.

  That is, here, a double-sided connection type connector is arranged on the printed circuit board 1, and the positioning pin 6d is inserted into the positioning hole 1b and the package 5 is stored and mounted in the connection target storage port 6b of the frame 6. When the connection is made so as to press between the packages 5, one of the protrusions on the conductor 4 a of each contact 4 is connected to each pad 5 a of the package 5, and the other protrusion is on the other side. The connection structure is such that the pads 1a of the printed circuit board 1 are contact-connected. The frame 6 can be moved slightly only in the clearance range of the positioning hole 1b of the positioning pin 6d and in the connecting direction (mounting direction in the tall direction).

  However, the shape of each contact 4 along the side surface is substantially scalloped before connection to the printed circuit board 1 and the package 5, but the printed circuit board 1 and package are connected to the printed circuit board 1 and the package 5. When the pressing force is large, the lateral direction perpendicular to the tall direction from the rib 6a (the printed circuit board 1 and the package 5 are shown in FIG. 13A). It deforms under the force of the extending horizontal direction).

  The pressing force at the time of connection with the connection object (package 5) not only bends the rib 6a, but sometimes the rib 6a may be broken, and the number of cores exceeds 1000. As shown in FIG. 13 (a), each time the contacts 4 are stacked (a predetermined number of contacts 4 are grouped together by a reinforcing member 4c such as metal or hard resin in the depth direction perpendicular to the paper surface). The force of the bending deformation is accumulated on the center of the frame 6 that is distant from the positioning pin 6d, causing distortion of the entire frame 6 about the positioning pin 6d. In the shaft, the bending of the rib 6a and the distortion of the frame 6 are maximized, and each contact 4 moves together with the rib 6a, which causes a contact failure.

  Referring to FIG. 13B, a horizontal force F that deflects each contact 4 according to the pressing force is transmitted to each rib 6a. In order to keep the balance as the component forces f1 and f2 received by the drag force on the tall side, the relationship of F = f1 + f2 is established in each contact 4.

  Here, when the coefficient of static friction generated between each contact 4 and each pad 1a, 5a is μ, and the load in the height direction applied to each contact 4 according to the operation pressing force is L, f1 and f2 are μL. If it is smaller than that, each contact 4 does not slide on each pad 1a, 5a, but buckles and deforms as shown in FIG. In this case, the radius of curvature of the deformed bent portion R of each contact 4 shown in FIG. 14 becomes very small, thereby causing disconnection (indicating poor conduction due to damage to the conductive pattern of the conductor 4a) at that point. Sometimes.

  On the other hand, if f1 and f2 are larger than μL, each contact 4 slides on each pad 1a and 5a, and the contact 4 of each contact 4 is particularly located on the left side shown in FIGS. 13 (a) and (b). When the object receives a large accumulated force F in the lateral direction and the contact portion (conductor 4a) slides on the pad and slides to the right side, the adjacent pads 1a and 5a other than the original connection location also have contact with each other. Contact may cause a short circuit.

  Further, the disconnection due to the buckling deformation of each contact 4 or a short circuit due to contact with a location other than the adjacent connection location may occur, which causes a contact failure in any case.

  In the connector of Patent Document 2, the positioning pin passes through the positioning hole of the base insulator, but the clearance between the pin diameter of the positioning pin and the hole diameter of the positioning hole is almost zero.

  Therefore, if the clearance between the pin diameter of the positioning pin and the hole diameter of the positioning hole is large, rattling occurs between the frame and the base insulator, and it is difficult to align the connection object and the conductor of the elastic body. Become.

  Further, in the connector of Patent Document 2, since the clearance between the pin diameter of the positioning pin and the hole diameter of the positioning hole is almost zero, when the elastic body is compressed, an attempt is made to push the base insulator by the elastic body. Since the base insulator immediately hits the positioning pin of the frame body, the base insulator does not move.

  Therefore, since the conductor of the elastic body is pushed and bent greatly by the base insulator, the conductor is greatly bent in the structure to which the base insulator is fixed, which causes a decrease in insertion / extraction life.

  The present invention has been made to solve such problems, and its technical problem is that the rib is hardly deformed or damaged even when the pressing force at the time of connection with the connection object is considerably large. An object of the present invention is to provide a double-sided connection type connector having a structure capable of stably preventing contact failure without causing disconnection or short circuit in a contact.

  Another technical problem of the present invention is to provide a double-sided connection type connector that can prevent damage or the like due to bending of a conductor and improve the life.

  Furthermore, the other technical subject of this invention is providing the double-sided connection type connector which can move a frame, without fixing completely, and can prevent position shift with a connection target object.

  According to the present invention, a double-sided connection type connector having a structure in which a plurality of contacts formed by forming a conductor on the surface of an insulating elastic body is supported by a frame so that the conductor protrudes from both main surfaces. The frame includes an inner frame holding the plurality of contacts, and an outer frame having a receiving portion for receiving the inner frame, and the inner frame and the receiving portion of the outer frame are mutually connected. The taper surface of the inner frame is contacted by a taper surface having a predetermined inclination angle with respect to the connection direction with the connection object, and further, the taper surface of the inner frame depends on the pressing force when connecting to the connection object. Guided along the tapered surface of the housing portion of the frame, and in contact with the first direction perpendicular to the connection direction or the second direction opposite to the first direction and the contact. Sided connection connector is obtained, wherein the movement to the third direction having a direction component angle.

  According to the invention, the taper surface of the inner frame has a first taper surface existing on the first direction side and a second taper surface existing on the second direction side. The taper surface of the housing portion of the outer frame has a third taper surface existing on the first direction side and a fourth taper surface existing on the second direction side. Further, the first tapered surface has an inclined shape including the first direction and the connection direction as the component angle in the third direction, and the second tapered surface is the third tapered surface. And the third tapered surface includes the second direction and the connection direction as the component angle of the third direction. The fourth taper surface includes the third direction. Sided connection connector, characterized in that as the partial square is inclined shape including the first direction and the connecting direction is obtained.

  In the case of the double-sided connection type connector of the present invention, even if the pressing force at the time of connection with the connection object is considerably large, the rib is hardly deformed or damaged, and disconnection or short circuit at each contact hardly occurs, and as a result, contact Defects are stably prevented, and reliability during use is high.

  Further, according to the double-sided connection type connector of the present invention, the contact has a structure in which the excessively deformed portion protrudes in the first direction in accordance with the pressing force at the time of connection with the connection object. It is possible to appropriately prevent contact failure and short circuit that occur due to elastic deformation at the time of contact with a connection object in a plurality of contacts formed by forming a conductor on the surface of the elastic body.

  Further, since the elastic body moves in one direction without being fixed even if it is compressed at the time of fitting, since the electric conductor does not bend, damage due to the bending of the electric conductor can be prevented, thereby improving the life. be able to.

  Furthermore, the frame can be moved without being completely fixed, and every time the frame is prevented from being displaced.

It is the external appearance perspective view which showed the basic structure of the double-sided connection type connector which concerns on the reference example 1 partly including the connection target object. FIG. 2 is a side view showing a partial perspective view of the basic structure of the double-sided connection type connector shown in FIG. 1 when connected to an object to be connected, where (a) relates to a schematic diagram before connection, and (b) shows connection. It relates to a schematic diagram of the state. It is the side view which showed partly through and showed the basic structure at the time of connection with the connection object of the double-sided connection type connector concerning the example of the present invention, and (a) relates to the schematic diagram of the state before connection, (b ) Relates to a schematic diagram of the connection state. It is the external appearance perspective view which showed the basic composition of the double-sided connection type connector which concerns on the reference example 2. FIG. It is the perspective view which decomposed | disassembled and showed the basic structure of the double-sided connection type connector shown in FIG. 5 is an enlarged view of a contact portion made up of a predetermined number of components arranged in a row and provided in the double-sided connection type connector shown in FIG. It is the shown perspective view. FIG. 6 is an enlarged front view showing a part of a frame for supporting the contact portion shown in FIG. It is sectional drawing which expanded and showed a part of flame | frame provided with the contact part shown in FIG. FIG. 5 is a side sectional view partially broken away for explaining the frame assembly structure of the double-sided connection type connector shown in FIG. 4. FIG. 5 is a side cross-sectional view showing a partially broken state of the double-sided connection type connector shown in FIG. FIG. 5 is a side cross-sectional view showing a partially broken state during connection of the double-sided connection type connector shown in FIG. FIG. 5 is a side cross-sectional view showing a partially broken connection completed state of the double-sided connection type connector shown in FIG. It is a side view of the basic structure shown in order to explain the problem which arises when connecting with the connection object of the double-sided connection type connector concerning patent documents 1, (a) relates to the schematic diagram shown partially transparently, (B) relates to a partially enlarged view shown partially transparent in order to explain the action of the force applied to each contact. FIG. 10 is a side view partially showing a state in which each contact is deformed in a connection state with a connection object of the double-sided connection type connector according to Patent Document 1.

  One of the double-sided connection type connectors according to the best mode of the present invention is such that a plurality of contacts formed by forming a conductor on the surface of an insulating elastic body are projected from both main surfaces. In the double-sided connection type connector having a structure supported by a frame, the frame includes an inner frame holding the plurality of contacts and an outer frame having a receiving portion for receiving the inner frame. And the housing portion of the outer frame are in contact with each other with a taper surface having a predetermined inclination angle with respect to the connection direction with the connection object, and the taper surface of the inner frame is connected to the connection object. The first direction perpendicular to the connection direction or the first direction is guided along the tapered surface of the housing portion of the outer frame in accordance with the pressing force at the time of connection. The direction is achieved by moving the third direction with said connection direction and a second direction opposite to the component angle.

  According to another aspect of the double-sided connection type connector according to the best mode of the present invention, the tapered surface of the inner frame is present on the first tapered surface on the first direction side and on the second direction side. And the taper surface in the housing portion of the outer frame exists on the third taper surface on the first direction side and on the second direction side. A first taper surface, and the first taper surface has an inclined shape including the first direction and the connection direction as the component angle in the third direction. The second taper surface is an inclined shape including the second direction and the connection direction as the component angle in the third direction, and the third taper surface is the component angle in the third direction. An inclined shape including the second direction and the connection direction; Tapered surface is achieved by the a third first as the component angle in the direction of the direction and slope shape including the connection direction.

Hereinafter, a reference example and an example are given and the double-sided connection type connector of the present invention is explained in detail with reference to drawings.
[Reference Example 1]

FIG. 1 is an external perspective view showing a basic structure of a double-sided connection type connector according to Reference Example 1 partially including a connection object. 2 (a) and 2 (b) are side views showing the basic structure of the double-sided connection type connector connected to an object to be connected as seen through a main part thereof. FIG. 2A relates to the state before connection, and FIG. 2B relates to the state after connection.

In the case of the double-sided connection type connector according to Reference Example 1, with reference to the drawings, the connector is roughly the same as that according to Patent Document 1. That is, it has a basic structure in which a plurality of contacts 4 formed by forming a conductor 4a on the surface of an insulating elastic body 4b are supported by a frame so that the conductor 4a protrudes from both main surfaces. .

  The frame here is composed of an inner frame 3 holding each contact 4 and an outer frame 2 having an accommodating portion for accommodating the inner frame 3. At the same time, with the connection object (first connection object) 5 such as an IC package in the connection object storage port 2a of the storage part for storing the inner frame 3 when the inner frame 3 is stored in the outer frame 2. Biasing means for urging in a first direction B (right direction of the page indicated by arrow B in FIG. 2A) perpendicular to the connection direction (the height direction indicated by arrow A in FIG. 2A). The spring 7 is provided.

  In addition, also about each contact 4 here, a predetermined number of things are hold | maintained in the series of the states by the reinforcement members 4c, such as a metal and a hard resin, in the depth direction perpendicular | vertical to a paper surface.

  However, in the case of this double-sided connection type connector, the inner frame 3 overcomes the urging in the first direction B by the spring 7 in accordance with the pressing force at the time of connection with the connection object 5, and the first direction B Moves in the second direction on the opposite side (the left side of the page indicated by the arrow C in FIG. 2A). For each contact 4, depending on the pressing force when connected to the connection object 5 Each of the excessively deformed portions protrudes in the first direction B as shown in FIG.

  In the case of this double-sided connection type connector, the connection target storage port 2a serving as a storage portion in the outer frame 2 has a bottom surface (flat surface) on the connection target object 5 side with the inner frame 3 incorporated. Is formed. The exposed portion around the portion where each contact 4 is provided at the bottom of the inner frame 3 becomes a down stopper portion 3d.

  Further, the outer frame 2 has an abutment surface 2c that is abutted against one end surface of the inner frame 3 when the inner frame 3 is biased in the first direction B by the spring 7 and extends in the connecting direction.

  The outer frame 2 is provided on the surface opposite to the abutting surface 2c so as to extend in the connecting direction, and is movably restricted when the inner frame 3 moves in the second direction C. It has a movable stopper locking surface 2b for locking 3b.

  Incidentally, the outer frame 2 is integrated with positioning pins 2d to be inserted into positioning holes 1b provided at diagonal corners of a printed circuit board (second connection object) 1 having a plurality of conductor pads 1a. Have.

  That is, in this double-sided connection type connector, the outer frame 2 is positioned in a state in which it can float in the connection direction A. The inner frame 3 is supported with some clearance in the connection direction A and the depth direction perpendicular to the paper surface with respect to the outer frame 2.

  The spring 7 is installed between the outer frame 2 and the inner frame 3 so that an urging force acts in a first direction B in which the inner frame 3 is pressed on the abutting surface (origin return surface) 2c of the outer frame 2. . Each contact 4 is inserted and fixed in a slit portion 3 f arranged in a predetermined manner at a substantially central portion of the inner frame 3.

  The attachment structure of each contact 4 in the inner frame 3 is substantially the same as that of the conventional structure (frame 6) described in FIGS. 13A, 13B, and 14. Each slit portion 3f arranged in a substantially central portion of the bottom portion (flat surface) at a predetermined interval is partitioned by a rib 3a, and each contact 4 is arranged in each slit portion. The connection object 5 is inserted into the connection object storage port 2a of the outer frame 2 with a minute clearance.

In the case of the double-sided connection type connector according to Reference Example 1, as shown in FIG. 2 (a), it is arranged on the printed circuit board 1 in a state before connection, and the positioning pin 2d is inserted into the positioning hole 1b, and the outer frame. The connection target object 5 is stored and attached to the connection target storage port 2a, and the connection state is maintained by pressing between the printed circuit board 1 and the connection target object 5 with a jig (not shown).

  At the time of this connection, as shown in FIG. 2A, in the double frame structure composed of the outer frame 2 and the inner frame 3, the pressing force when connecting the printed circuit board 1 and the connection object 5 causes the inner frame 3 to spring. 7 is overcome and moved in the second direction C (left direction in the drawing). Further, when the movable stopper surface 3b comes into contact with the movable stopper locking surface 2b of the outer frame 2 and is stopped, the connection state shown in FIG. In this connected state, the excessively deformed portion of each contact 4 protrudes in the first direction B (the right direction on the page). At this time, the protruding portion on one side of the conductor 4 a of each contact 4 is stably contact-connected to each conductor pad 5 a of the connection object 5. At this time, the protruding portion on the other side of the conductor 4 a of each contact 4 is stably contact-connected to each conductor pad 1 a of the printed circuit board 1. For this reason, even when the pressing force at the time of connection is considerably large, the rib 3a is hardly deformed or damaged, and disconnection or short circuit in each contact 4 hardly occurs, and contact failure is stably prevented.

  If it demonstrates in detail, in the connection state which pressed between the printed circuit board 1 and the connection target object 5 in the connection direction A, the force of the direction (2nd direction C) perpendicular | vertical to the connection direction A which arises at the time of compression of each contact 4 Naturally moves the inner frame 3 in the second direction C from the pre-connection state shown in FIG. 1A by contracting the spring 7 against the biasing force of the spring 7 (acting in the first direction B). Follow.

  At this time, the movable stopper surface 3 b of the inner frame 3 abuts against the movable stopper locking surface 2 b of the outer frame 2 so as to restrict the movement of the inner frame 3. As a result, as a result of the inner frame 3 being stationary, the connection state shown in FIG.

  Here, since the force in the second direction C can be eliminated by the movement of the inner frame 3, there is no problem of short circuit or contact failure in each contact 4 which has been a problem in the conventional structure. Since the contact 4 maintains a stable deformed shape in the first direction B, durability during use can be improved.

  Incidentally, when the printed circuit board 1 and the connection object 5 that are loads are pulled out from the connection state shown in FIG. 2B, the state before connection shown in FIG. 2A is restored. In the state where the load (pressing) is released, the abutting surface 3c of the inner frame 3 abuts against the abutting surface 2c of the outer frame 2 which is the origin return position at the same time due to the restoring force of the spring 7, thereby Quiesce.

  The spring 7 not only eliminates the force applied to the rib 3a due to the movement in the second direction C with respect to the inner frame 3 when the connection object 5 is mounted, but also the inner frame 3 when the connection object 5 is removed. It has a function of returning to the initial position by a restoring force, and the biasing force may be set to about 490 to 2940 mN, though it depends on the number of cores of each contact 4.

In short, in the case of the connection structure according to the reference example 1, the outer frame 2 is within the clearance within the positioning hole 1b of the positioning pin 2d, and the inner frame 3 is the distance from the movable stopper surface 3b to the movable stopper locking surface 2b. Hereinafter, the outer frame 2 and the inner frame 3 can be moved minutely in the connection direction A (the height direction), and the overall clearance is well balanced. It can be carried out.

FIG. 3 is a side view illustrating the basic structure of the double-sided connection type connector according to the embodiment of the present invention when it is connected to the connection object, with the main part thereof seen through. FIG. 3A relates to the state before connection, and FIG. 3B relates to the state after connection.

For the case of a double-sided connection connector according to the embodiment also, roughly similar to that of the configuration according to Patent Document 1, those of a plurality of contacts 4 obtained by forming a conductor 4a on the surface of the insulating elastic body 4b It has a basic structure in which the conductor 4a is supported by a frame so as to protrude from both main surfaces.

In addition, as in the case of the structure according to the first reference example , the frame has a structure including an inner frame 9 holding each contact 4 and an outer frame 8 having a receiving portion for receiving the inner frame 9. Here, the connection target storage port 8a serving as a storage part for the inner frame 9 and the outer frame 8 is connected to the connection target (first connection target) 5 such as an IC package and the printed circuit board 1 (second connection target). ) With a taper surface having a predetermined inclination angle with respect to the connecting direction.

  However, in the case of this double-sided connection type connector, the taper surface of the inner frame 9 is guided along the taper surface of the connection target storage port 8a of the outer frame 8 according to the pressing force when connecting to the connection target object 5. . At this time, the inner frame 9 has a first direction B perpendicular to the connection direction A (the height direction) indicated by the arrow A in FIG. 3A (the paper surface indicated by the arrow B in FIG. 3A). 3) (a right direction) and a second direction C (the left direction shown by the arrow C in FIG. 3A) opposite to this and a third direction (FIG. 3A) having the connection direction A as component angles. ) In the direction indicated by arrow D). For each contact 4, the excessively deformed portion protrudes in the first direction B according to the pressing force at the time of connection with the connection object 5 and the printed circuit board 1.

  Also in the case of this double-sided connection type connector, the connection target storage port 8a of the storage unit in the outer frame 8 has the bottom surface (flat surface) on the connection target object 5 side with the inner frame 9 incorporated. Is formed. The exposed portion around the portion where each contact 4 is provided at the bottom of the inner frame 9 is a down stopper portion 9d.

  Furthermore, the taper surface of the inner frame 9 has a first taper surface 9c existing on the first direction side and a second taper surface 9b existing on the second direction side. The tapered surface of the connection target storage port 8a of the outer frame 8 has a third tapered surface 8c existing on the first direction B side and a fourth tapered surface 8b existing on the second direction side. .

  Specifically, the first tapered surface 9c has an inclined shape including a first direction B (right direction on the paper surface) and a connection direction A (upward direction in the height direction) as component angles in the third direction. It has become. Similarly, the second taper surface 9b has an inclined shape including the second direction C (left direction in the drawing) and the connection direction A (down direction in the height direction) as component angles in the third direction.

  Similarly, the third taper surface 8c has an inclined shape including the second direction C (leftward on the paper surface) and the connection direction A (downward in the height direction) as component angles in the third direction D. ing. Similarly, the fourth taper surface 8b has an inclined shape including the first direction B (the right direction in the drawing) and the connection direction A (the upward direction in the height direction) as component angles in the third direction D. .

  That is, in this double-sided connection type connector, the inner frame 9 is supported with some clearance in the depth direction perpendicular to the paper surface with respect to the outer frame 8, and the inner frame 9 in the third direction D indicated by the arrow. 9 and the taper surface 8b of the outer frame 8 are supported in a floating state with some clearance.

  The tapered surfaces 9 b and 9 c of the inner frame 9 and the tapered surfaces 8 b and 8 c of the outer frame 8 are movable with respect to the outer frame 8 by pressing when the connection object 5 and the printed circuit board 1 are connected. It is assumed that an appropriate inclination angle is set so that

  Each contact 4 is inserted and fixed in a slit portion 3f (see FIG. 1) arranged in a predetermined manner at a substantially central portion of the bottom portion (flat surface) of the inner frame 9. Again, the attachment structure of each contact 4 in the inner frame 9 is the same as that of the conventional structure (frame 6) described with reference to FIGS. 13 (a), 13 (b) and 14. That is, the attachment structure of each contact 4 in the inner frame 9 is substantially the same as that of the conventional structure (frame 6) described in FIGS. 13 (a), 13 (b) and 14.

  Each slit portion 3f arranged in a substantially central portion of the bottom portion (flat surface) of the inner frame 9 at a predetermined interval is partitioned by a rib 9a, and each contact 4 is arranged in each slit portion 3f. ing. The connection object 5 is also inserted into the connection object storage port 8a of the outer frame 8 with a small clearance.

Even in the case of the double-sided connection type connector according to the embodiment, the package 5 is arranged on the printed circuit board 1 before being connected and inserted into the positioning hole 1b of the positioning pin 8d and the package 5 with respect to the connection target storage port 8a of the outer frame 8. As shown in FIG. 3B, the printed circuit board 1 and the connection object 5 are pressed by a jig (not shown) in the same manner as in Reference Example 1.

  Here, in particular, as an order of connection, as shown in FIG. 3 (a), it is used that the mating connection by pressing with the printed circuit board 1 is performed in advance in a state before connection (to be in a semi-connection state). This is desirable for convenience.

  At the time of this connection, as shown in FIG. 3 (a), the outer frame 8 in which the protruding portion on the other side of the conductor 4a of each contact 4 is in contact with and connected to each pad 1a of the printed circuit board 1 in advance. A double frame structure is formed by the inner frame 9. In this double frame structure, the inner frame is such that the pressing force when connected to the connection object 5 guides the tapered surfaces 9b, 9c of the inner frame 9 along the tapered surfaces 8b, 8c of the outer frame 8. 9 is moved in the third direction D (downwardly in the figure).

  The protrusion on one side of the conductor 4a of each contact 4 is contact-connected to each conductor pad 5a of the connection object 5, and the excessively deformed portion of each contact 4 protrudes in the first direction B. The connection state as shown in FIG. For this reason, even when the pressing force at the time of connection is considerably large, the rib 9a is hardly deformed or damaged, and disconnection or short circuit in each contact 4 hardly occurs, and contact failure is stably prevented.

  If it demonstrates in detail, in the connection state which pressed between the printed circuit board 1 and the connection target object 5 by the connection direction A (height direction), the taper of the inner frame 9 from the state before a connection shown to Fig.3 (a). The surfaces 9b and 9c move along the tapered surfaces 8b and 8c of the outer frame 8 in the third direction D (downwardly in the direction of the arrow in the figure). At this time, the tapered surface 9 c of the inner frame 9 abuts against the tapered surface 8 c of the outer frame 8.

  The movement is stopped when the conductor 4a of each contact 4 hits each pad 5a of the connection object 5 and the excessively deformed portion of each contact 4 protrudes in the first direction B. As a result, the connection state shown in FIG. 3B is obtained (at this point, the contact force between the tapered surfaces 8c and 9c is released and the two are separated slightly).

  When the connection object 5 is pulled out from this connected state, the state before connection shown in FIG. When the pressure is released, the taper surfaces 9b and 9c of the inner frame 9 are moved along the taper surfaces 8b and 8c of the outer frame 8 in the third direction (in the drawing) by the repulsive force (elastic return force) of each contact 4. The taper surface 9b of the inner frame 9 abuts against the taper surface 8b of the outer frame 8.

  Eventually, each contact 4 as shown in the pre-connection state shown in FIG. 3A is pulled back to a separated position where it does not elastically deform (at this point, the contact force of the tapered surfaces 8b and 9b is released and both Leave a minute).

In short, even in the connection structure according to this embodiment, the outer frame 8 is connected to the clearance in the positioning hole 1b of the positioning pin 8d, and the inner frame 9 is connected to the connection target storage port 8a of the outer frame 8. It can move slightly in the depth direction and the third direction of the paper surface perpendicular to the direction A (the height direction), and has a structure with a well-balanced clearance as a whole. It can be performed.

Incidentally, in the double-sided connection connector according to the embodiment described above, housing portion relative to the frame 3, 9 among which is formed in the outer frame 2 and 8 one of the connected storage port 2a for accommodating the connecting object 5, 8a However, the inner frame is not accommodated in the outer frame, and another frame in which a connection object accommodation opening for accommodating connection objects other than the connection object 5 and the printed circuit board 1 is formed. It is also possible to build a structure and obtain an equivalent function.
[Reference Example 2]

FIG. 4 is an external perspective view showing the basic configuration of the double-sided connection type connector according to Reference Example 2 . FIG. 5 is an exploded perspective view of the double-sided connection type connector according to the second reference example .

In Reference Example 2 , a printed circuit board 1 and a connection object storage port for storing a connection object different from the printed circuit board 1 are formed, and the frame structure has a biasing means.

4 and 5, in the case of the double-sided connection type connector according to Reference Example 2 , the conductor 14a is provided on the surface of the insulating elastic body 14b, as in the case of the configuration according to Patent Document 1, roughly. It has a basic structure in which a plurality of contacts 14 formed are supported by a frame so that a conductor 14a protrudes from both main surfaces. The frame base material 21 is biased in a first direction B (arrow B direction shown in FIG. 5) perpendicular to the connection direction A (arrow A direction shown in FIG. 5) of the connection object during assembly. Biasing means (a spring portion 21e described later) is integrally provided.

  However, the frame here includes a frame body 31 that holds the frame base material 21, a reinforcing frame body 41 that is interposed between the frame base material 21 and the frame body 31, and is attached to the frame base material 21. It includes a pair of block bodies 51 that receive the reinforcing frame body 41.

  Incidentally, in the frame base material 21, as will be described later, the frame body 31 is engaged with the spring portion 21 e of the frame base material 21 via a slide mechanism portion attached to the reinforcing frame body 41. Accordingly, the clearance of the diameters of the positioning pins 36a and 36b of the frame 31 with respect to the diameters of the positioning holes 47a and 47b of the reinforcing frame 41 and the frame positioning holes 25a and 25b formed in the frame base material 21 when the connection object is attached and detached. 5, the frame base 21 slides relative to the frame 31 and the reinforcing frame 41 in the first direction B and the second direction C opposite to the first direction B in FIG. 5. It has a possible structure.

  FIG. 6 is an enlarged view of each contact 14 shown in FIG. 4 and a portion I in FIG. 5 in the frame base material 21 holding each contact 14. FIG. 7 is a cross-sectional view of a part of the frame base material 21 holding each contact 14 shown in FIG. 5 in the horizontal direction E when the first direction B and the first direction B are the vertical direction. The form is shown. FIG. 8 shows a form in which a part of the frame base material 21 holding the contacts 14 shown in FIG. 5 is sectioned in the first direction B and the second direction C.

  Referring to FIGS. 6 to 8, here, each contact 14 is formed by arranging a conductor 14a on the surface of an insulating elastic body 14b having elasticity such as rubber. Further, the insulating elastic body 14b is connected in the lateral direction E with a connecting portion 14b ″ interposed so as to have a predetermined interval in a state where a predetermined number of substantially plate-shaped base portions 14b ′ are erected. The conductor 14a is disposed so as to be connected to one surface of each base portion 14b 'and a pair of side surfaces extending from the one surface (connection direction A), so that as shown in FIG. A contact module having a structure in which 15 contacts 14 are arranged by connecting 15 bases 14b 'in the body 14b in the lateral direction E is formed.

The frame base material 21 is produced by molding a resin material so as to exhibit a substantially square plate shape. About the frame base material 21, a pair of frame horizontal frame portions 21 a and 21 b that are parallel to each other in the first and second directions B and C and that are long in the horizontal direction E are parallel to each other in the horizontal direction E. A pair of frame vertical frame portions 23a and 23b that are opposed to each other and are long in the first and second directions B and C, a pair of frame horizontal frame portions 21a and 21b, and a pair of frame vertical frame portions 23a and 23b ( reference It has a plurality of slit portions 25 formed in the down stoppers 3d and 9d as locking pieces for the connection object 5 of Example 1 ).

  Further, the frame base material 21 has a spring portion 21e as an urging means integrally formed on one end side of one frame lateral frame portion 21a as a pair of substantially arm shapes by punching, notching or the like. is doing.

  Each slit part 25 is provided in the frame base material 21 at equal intervals, and the insulating elastic body 14 b is arranged in each slit part 25. Each slit portion 25 penetrates the front and back surfaces of the frame base material 21 and has a long dimension in the lateral direction E, as is apparent with reference to FIG. 6, and the first and second directions B, A plurality of C are continuously formed.

  A plurality of stopper portions 27 are formed on the frame base material 21 so as to divide the slit portions 25 in the second direction C. The stopper portion 27 is configured so that a predetermined number of contact portions 14 of each contact 14 shown in FIG. 6 can be press-fitted and held in one of the slit portions 25, and more than the front and back surfaces of the frame base material 21. It protrudes slightly outward (upward).

  The insulating elastic body 14b protrudes from both surfaces of the frame base material 21. By providing the conductor 14a, the protruding portion becomes an electrical contact. Frame positioning holes 25a and 25b are formed in an intermediate portion in the first direction B in each of the pair of frame vertical frame portions 23a and 23b.

  As shown in FIGS. 4 and 5, the frame 31 is a substantially quadrangular frame that is parallel to each other in the first and second directions B and C and has a shape that is long in the lateral direction E. It has a pair of horizontal frame parts 33a and 33b and a pair of vertical frame parts 35a and 35b which face each other in the horizontal direction E and are long in the first and second directions B and C.

  The pair of horizontal frame portions 33a and 33b are substantially the same as the width dimension in the horizontal direction E and the dimensions in the first and second directions B and C so as to face the pair of frame horizontal frame portions 21a and 21b of the frame base material 21. It has the same dimensions. The pair of vertical frame portions 35a and 35b are substantially the same as the horizontal width dimension in the horizontal direction E and the dimensions in the first and second directions B and C so as to face the pair of frame vertical frame portions 23a and 23b of the frame base material 21. It has the same dimensions.

  The frame 31 is manufactured by punching a thin metal plate with a press and then bending it. Protruding frame portions 37 a, 37 b, 37 c, and 37 d extending in the first and second directions B and C extend at the square portions of the frame body 31. Of these projecting frame portions 37a, 37b, 37c, and 37d, frame positioning holes 37g and 37h are formed in two projecting frame portions 37a and 37d.

  In each of the pair of horizontal frame portions 33a and 33b, press-fit portions 38a, 38b, 38c and 38d are formed inside and in the vicinity of the protruding frame portions 37a, 37b, 37c and 37d. These press-fit portions 38a, 38b, 38c, and 38d extend outward from the pair of horizontal frame portions 33a and 33b, and are bent so that the tip portions are positioned below the pair of horizontal frame portions 33a and 33b. Yes.

  A pair of positioning pins 36a and 36b are formed in the middle portions of the first and second directions B and C in each of the pair of vertical frame portions 35a and 35b. These positioning pins 36a, 36b extend from the back surface of the pair of vertical frame portions 35a, 35b to the back surface so that they can be inserted into the pair of frame positioning holes 25a, 25b on a one-to-one basis.

  As shown in FIG. 5, the reinforcing frame body 41 is a substantially quadrangular frame that is opposed to each other in parallel in the first and second directions B and C and that is long in the lateral direction E. The frame body 31 has a horizontal frame portion 43a, 43b and a pair of reinforcing vertical frame portions 45a, 45b which face each other in the horizontal direction E and are long in the first and second directions B, C. It is held in a state where it is caught on.

  The reinforcing frame 41 can be produced by punching a thin metal plate with a press. The pair of reinforcing horizontal frame portions 43 a and 43 b oppose the pair of frame horizontal frame portions 21 a and 21 b of the frame base material 21. Further, the pair of reinforcing horizontal frame portions 43a and 43b is a pair of projecting pieces in which an intermediate portion in the lateral direction E of the reinforcing horizontal frame portions 43a and 43b protrudes outward from the sides of the reinforcing horizontal frame portions 43a and 43b. It has parts 43d and 43e.

  The pair of reinforcing vertical frame portions 45a and 45b have a width dimension in the horizontal direction E and dimensions in the first and second directions B and C so as to face the pair of frame vertical frame portions 23a and 23b of the frame base material 21, respectively. The dimensions are almost the same.

  The frame body 31 is provided with positioning pins 36a and 36b that pass through the positioning holes 47a and 47b and the frame positioning holes 25a and 25b. However, the diameter of the frame positioning holes 25a and 25b here is larger than the diameter of the positioning pins 36a and 36b.

  Positioning holes 47a and 47b are formed in intermediate portions in the first and second directions B and C in each of the pair of reinforcing vertical frame portions 45a and 45b. These positioning holes 47a and 47b are holes that coincide with the frame positioning holes 25a and 25b of the frame base material 21, and are portions through which the positioning pins 36a and 36b of the frame 31 are inserted. The positioning pins 36a and 36b project downward through the frame positioning holes 25a and 25b.

  Next, with reference to FIG.4 and FIG.5, a pair of block body 51 is demonstrated. Since these block bodies 51 have the same shape, the same reference numerals are given.

  The pair of block bodies 51 are produced by molding a resin material, have a shape that is long in the lateral direction E, and are opposed to the reinforcement lateral frame portions 43a and 43b of the reinforcement frame body 41, respectively. A stepped portion 54 is formed from the front surface to the back surface side in the intermediate portion of the facing surface 53a. The dimension in the lateral direction E of the stepped portion 54 is substantially the same as the dimension in the lateral direction E of the projecting piece parts 43d and 43e of the reinforcing frame 41, and can be received by mounting the projecting piece parts 43d and 43e. ing.

  Further, a hole-shaped slide receiving portion 55 is formed at the central portion in the lateral direction E of the stepped portion 54. Further, a total of four press-fit holes 57a and 57b are formed on the outer side in the lateral direction E of the stepped portion 54 from the front surface to the back surface side. These press-fitting holes 57a and 57b are portions into which the press-fitting portions 38a, 38b, 38c and 39d of the frame body 31 are press-fitted one-on-one.

  In addition, positioning holding holes 58a and 58b penetrating the front and back surfaces are formed in the block body 51 in the vicinity of one end or the other end of both ends in the lateral direction E, respectively. The positioning and holding holes 58a and 58b are configured to correspond to the two frame positioning holes 37g and 37h formed in the projecting frame portions 37a and 37d of the frame body 31, respectively.

  In addition, an opening 59 is formed in the block body 51 on the rear side of the slide receiving portion 55. The opening 59 is formed continuously on the front and back surfaces of the block body 51 and the rear surface 53b on the opposite side to the facing surface 53a. A slide member 61 is fitted in the slide receiving portion 55 so as to be slidable in the lateral direction E. The slide member 61 is provided on the slide plate portion 63 to be inserted into the slide receiving portion 55 and on the rear portion of the slide plate portion 63 in order to slide the slide plate portion 63 in the lateral direction E outside the slide member 61. And an operation unit 65. The slide plate portion 63 is formed with one notch 67 from the front end side to the rear side.

Hereinafter, assembly of the double-sided connection type connector according to Reference Example 2 will be described. A conductor 14a is attached to each of the insulating elastic bodies 14b by metal sputtering to produce a single contact 14 and a contact portion. Thereafter, the number corresponding to the number of slit portions 25 provided on the frame base material 21 of each contact portion is accommodated in each slit portion 25, and the frame base material 21 and the reinforcing frame body 41 are bonded together. At this time, the frame positioning holes 25a and 25b of the frame base material 21 and the positioning holes 47a and 47b of the reinforcing frame body 41 are bonded together so as to coincide with each other.

  The method of bonding the frame base material 21 and the reinforcing frame body 41 may be performed using a double-sided tape or an adhesive. The reinforcing frame 41 has a role of forcing the warp of the frame base material 21 to improve the mechanical strength.

  Thereafter, after the slide plate portion 63 of the slide member 61 is inserted into the slide receiving portion 55 of the block body 51, the projecting piece portions 43 d and 43 e of the reinforcing frame body 41 are placed on the stepped portion 54 of the block body 51. At this time, the facing surface 53 a of the block body 51 comes into contact with the sides of the frame horizontal frame portions 21 a and 21 b of the frame base material 21.

  Further, the frame 31 is mounted on the reinforcing frame 41. At this time, as shown in FIG. 9, the positioning pins 36a and 36b of the frame 31 pass through the positioning holes 47a and 47b of the reinforcing frame 41. And is inserted into the frame positioning holes 25a and 25b of the frame base material 21. At the same time, the press-fit portions 38a, 38b, 38c, and 38d of the frame body 31 are press-fitted into the press-fit holes 57a and 57b of the block body 51, respectively.

  The spring portion 21e is pushed and displaced by the block body 51. At this time, the entire frame base material 21 is pushed in the first direction (the direction of the arrow B ′ shown in FIG. 9). At this time, the clearance between the frame positioning holes 25a and 25b and the positioning pins 36a and 36b of the frame 31 is large, but the frame base material 21 is pushed in and moves in the first direction B.

That is, the spring portion 21e is displaced when incorporated in the frame body 31 and the pair of block bodies 51, and at this time, the frame base material 21 is pushed in the first direction B. Therefore, as shown in FIG. The frame base material 21 is minutely arranged so that the positioning pins 36a, 36b are in contact with the end surfaces of the frame positioning holes 25a, 25b, and the end surfaces of the frame positioning holes 25a, 25b are always in contact with the positioning pins 36a, 36b of the frame 31. However, since the alignment of the frame base material 21 and the frame body 31 is always constant, the conductor 14a of each contact 14 and the reference example 1 described above are used. Position alignment with a conductive pad (not shown) of a printed circuit board 1 'similar to the printed circuit board 1 is facilitated.

Moreover, the insulating elastic body 14b is compressed at the time of fitting, and the force which presses the flame | frame base material 21 to the 2nd direction C by the side of the conductor 14a of the insulating elastic body 14b generate | occur | produces. At this time, the spring portion 21e of the frame base material 21 is further compressed, and the frame base material 21 moves slightly in the second direction. Thus, the conductor 14a is not bent without being pressed against the frame base material 21, and the conductor 14a of each contact 14 and the conductor pad of the connection object 5 such as the IC package in the case of the above-described Reference Example 1 (FIG. Alignment with (not shown) becomes easy.

  In this way, the assembly of the double-sided connection type connector in which the frame body 21, the frame body 31, the reinforcing frame body 41, and the block body 51 provided with the slide member 61 are integrally combined is completed.

  Hereinafter, the connection with the connection object after the respective contacts 14 are press-fitted into the frame base material 21 will be described in detail. However, here, as shown in FIG. 8, the dimension of the frame base material 21 in the plate thickness direction is L1, the height of the stopper portion 27 is L2, and the height 14 of each contact 14 is L3. .

Referring to FIG. 10, the double-sided connection type connector according to the reference example 2 is sandwiched between the printed circuit board 1 ′ that is one connection object and the other connection object 5, so that the printed circuit board 1 ′ and the other connection object 5 are sandwiched. The connection object 5 is electrically connected. The printed circuit board 1 'has a positioning hole 1a' through which the positioning pin 36b is inserted.

  In this double-sided connector, when setting a displacement sufficient for electrical connection, the dimensions L1, L2, and L3 shown in FIG. 8 are obtained in advance, and the printed circuit board 1 ′ and the height L2 of the stopper portion 27 are obtained. What is necessary is just to apply a load so that the connection target object 5 may be pressed. Even if an impact is applied in this state, since the frame base material 21 is receiving the impact, it is possible to prevent damage due to deformation of the insulating elastic body 14b.

  The aligned printed circuit board 1 ′ and the connection object 5 are initially connected by the arrows shown in FIG. 7 with reference to the connection halfway state shown in FIG. 10 and the connection completion state shown in FIG. 11. When the insulation elastic body 14b is compressed and deformed when it is pressed and fixed to the stopper portion 27 in the direction A, the compression elastic deformation of the insulating elastic body 14b tends to spread in a direction parallel to the main surface of the frame base material 21. At this time, as shown in FIG. 12, the frame base member 21 is pushed toward the conductor 14a (second direction C) that is in close contact with the insulating elastic body 14b, and the spring portion 21e is displaced. The material 21 moves in the second direction C parallel to this. At the same time, the excessively deformed portions of each contact 14 protrude in the first direction B according to the pressing force.

  The slide member 61 serves to temporarily fix the printed circuit board 1 'so that it does not fall off when the printed circuit board 1' is stood after the double-sided mounting type connector is mounted on the printed circuit board 1 '. The temporary fixing operation by the slide member 61 is described in detail in Japanese Patent Application Laid-Open No. 2006-054149 and the like, and thus the description thereof is omitted here.

Also in the case of the double-sided connection type connector according to the reference example 2 , as in the case of the structure of the reference example 1 , the frame base material 21 is assembled with the frame member and connected as shown in FIG. In response to the pressing force at the time of connection with the connection object 5 that has been mounted on the printed circuit board 1 ′, the first bias is overcome by the spring portion 21e provided integrally therewith in the first direction B. It moves in the second direction C opposite to the direction B. At this time, for each contact 14, the excessively deformed portion protrudes in the first direction B in accordance with the pressing force at the time of connection with the connection object 5.

  Incidentally, the conductor 14a provided on the surface of each contact 14 here is preferably performed by metal sputtering or metal plating. The spring portion 21e formed on the frame base material 21 may be configured to incorporate a metal spring elastic member into the end surface of the frame base material 21 other than being integrated with the frame base material 21.

Further, the stopper portion 27 for preventing crushing due to over-compression is desirably made as large as possible in the area where the printed circuit board 10 abuts. In particular, if the area is increased, the size of the double-sided mount connector of Reference Example 2 is increased. This is effective when the thickness of the printed circuit board 1 'is large or when the printed circuit board 1' is warped. Furthermore , as each contact 14, the insulating elastic body 14 b has been described as rubber. However, for example, a structure in which a conductor 14 a is attached to a gel and a frame base material that holds each contact thus obtained is used. Also good. In addition, the frame 31, the reinforcing frame 41, the block body 51, and the slide member 61 may be made of a resin material or the like if sufficient mechanical strength is obtained, in addition to being made of a metal material. Is possible.

  In the above-described embodiment, the connector is connected to the connection object 5 and the pads 1a and 5a of the board 1 while sliding, so that contaminants on the surface of the contact portion can be eliminated and a stable contact structure is obtained.

  The double-sided connection type connector of the present invention has an application for electrically connecting printed circuit boards, an application for electrically connecting a surface mount type semiconductor socket and various printed circuit boards, a semiconductor IC socket and an inspection circuit board. It can be applied to uses for electrical connection.

1, 1 ', 10 Printed circuit board 1a, 5a Pad 1b, 47a, 47b Positioning hole 2, 8 Outer frame 2a, 6b, 8a Connection target storage port 2b Movable stopper locking surface 2c Abutting surface 2d, 6d, 8d Positioning pin 3, 9 Inner frame 3a, 6a, 9a, 26 Rib 3b Movable stopper surface 3c Abutting surface 3d, 6c, 9d Down stopper portion 3f, 25 Slit portion 4, 14 Contact 4a, 14a Conductor 4b, 14b Insulating elastic body 4c Reinforcing member 5 Connection object 6 Frame 7 Spring 8b, 8c, 9b, 9c Tapered surface 14b 'Base portion 14b "Connecting portion 21 Frame base material 21a, 21b Frame horizontal frame portion 21e Spring portion 23a, 23b Frame vertical frame portion 25a, 25b Frame positioning hole 27 Stopper portion 31 Frame 33a, 33b Horizontal frame portion 35a , 35b Vertical frame portion 36a, 36b Positioning pin 37a, 37b, 37c, 37d Projection frame portion 37g, 37h Frame positioning hole 41 Reinforcement frame body 43a, 43b Reinforcement horizontal frame portion 43d, 43e Protruding piece portion 45a, 45b Reinforcement vertical frame portion 51 Block body 57a, 57b Press-fit hole A Connection direction B First direction C Second direction D Third direction

Claims (2)

In a double-sided connection type connector having a structure in which a plurality of contacts formed by forming a conductor on the surface of an insulating elastic body are supported by a frame so that the conductor protrudes from both main surfaces, the frame includes: The inner frame holding the plurality of contacts and an outer frame having an accommodating portion for accommodating the inner frame, and the inner frame and the accommodating portion of the outer frame are connected to each other to be connected. A taper surface having a predetermined inclination angle with respect to the direction, and further, the taper surface of the inner frame is in the housing portion of the outer frame in accordance with a pressing force at the time of connection with the connection object. A component angle between the first direction perpendicular to the connection direction or the second direction opposite to the first direction and the connection direction is guided along the tapered surface. Sided connection connector, characterized in that the move to the third direction having been. 2. The double-sided connector according to claim 1, wherein the tapered surface of the inner frame includes a first tapered surface existing on the first direction side and a second tapered surface existing on the second direction side. And the taper surface in the housing portion of the outer frame includes a third taper surface existing on the first direction side and a fourth taper surface existing on the second direction side. And the first tapered surface has an inclined shape including the first direction and the connection direction as the component angle of the third direction, and the second tapered surface is The inclined direction includes the second direction and the connection direction as the component angle in a third direction, and the third tapered surface has the second direction and the component angle in the third direction. It is an inclined shape including a connecting direction, and the fourth tapered surface is Serial sided connection connector, characterized in that an inclined shape including the first direction and the connecting direction as the component angle of the third direction.

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