JP2017103143A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector capable of reducing a possibility of short-circuiting between signal terminals of a signal transmission member even if θ deviation occurs in the signal transmission member.SOLUTION: A plurality of conductive contacts 12 is disposed in an inner periphery of an insertion port 15 of a housing 11 and comprises first and second signal contact parts 12auc, 12buc disposed in such a manner that the signal contact parts can be brought into contact with signal terminals provided on one face of an FPC which is inserted through the insertion port 15 into the housing 11. An actuator 13 is fitted to the housing 11 in a rotatable manner and comprises a cam part 13c which is configured to be abutted to the contact 12. The cam part 13c is rotated to press the contact 12, such that the first and second signal contact parts 12auc, 12buc are brought into contact with the signal terminals. The thickness of the first and second signal contact parts 12auc, 12buc in parallel with an array direction of the contacts 12 is less than the thickness of the contacts 12 in parallel with the array direction of the contacts 12.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electrical connector.

  A signal terminal of a signal transmission member represented by a flat FPC (Flexible Printed Circuits) inserted into an insertion port of an insulating housing constituting the connector, and a board on which the connector is mounted are electrically connected. Connectable electrical connectors are known.

  In this type of electrical connector, an actuator having an operation lever operated by a user is generally attached to a housing so as to be rotatable. When the operation lever is rotated by the user operation so as to be substantially parallel to the insertion direction of the signal transmission member, the actuator signals the end of the contact disposed on the inner periphery of the housing insertion port. Close to the signal terminal of the transmission member, the end of the contact and the signal terminal are brought into contact with each other.

  The contacts are, for example, soldered to a substrate on which an electrical connector is mounted. Therefore, the electrical connector realizes electrical connection between the signal terminal of the signal transmission member and the substrate on which the connector is mounted by bringing the signal terminal of the signal transmission member and the end of the contact into contact.

JP 2010-170821 A

  In the type of electrical connector described in Patent Document 1, for example, an impact is given to the signal transmission member inserted into the insertion port, and the signal transmission member is shifted by θ (centering on one point in the wide surface of the signal transmission member). , A deviation in which the signal transmission member rotates parallel to the wide surface) may occur.

  When the θ shift occurs, the arrangement direction of the end portions of the contacts is shifted obliquely with respect to the arrangement direction of the signal terminals of the signal transmission member. Due to this shift, there is a problem that the end portion of the contact can contact a signal terminal that is not a contact target in addition to the signal terminal that is a contact target, and the signal terminals can be short-circuited.

  The present invention has been made in view of the above circumstances, and provides an electrical connector capable of reducing the possibility of short-circuiting between signal terminals of a signal transmission member even when θ shift occurs in the signal transmission member. Objective.

In order to achieve the above object, an electrical connector according to the present invention comprises:
An insulating housing having an insertion port into which a plate-like signal transmission member can be inserted;
Conductive conductive member having a signal contact portion disposed on the inner periphery of the insertion port of the housing and disposed so as to be able to contact a signal terminal provided on one surface of the signal transmission member inserted into the housing through the insertion port Multiple contacts,
It has a contact part that is movably attached to the housing and configured to be able to contact the contact, and the contact between the signal contact part and the signal terminal is realized by pressing the contact by moving the contact part. An actuator to
With
The thickness of the signal contact portion parallel to the arrangement direction of the contacts is thinner than the thickness of the other part of the contact parallel to the arrangement direction.

  Further, the signal contact portion may be convex toward the signal terminal of the signal transmission member inserted into the housing.

Further, the contact has a transmission contact portion that is disposed so as to be able to contact a transmission terminal provided on the other surface of the signal transmission member inserted into the housing at a position facing the signal contact portion.
The actuator further realizes contact between the transmission contact portion and the transmission terminal by pressing the contact by movement of the contact portion,
The thickness of the transmission contact portion parallel to the arrangement direction of the contacts may be thinner than the thickness of the other part of the contact parallel to the arrangement direction.

  The transmission contact portion may be convex toward the transmission terminal of the signal transmission member inserted into the housing.

  Further, the thickness of the signal contact portion and the thickness of the transmission contact portion parallel to the arrangement direction of the contacts may be the thinnest among the contacts.

  Further, the signal contact portion and the transmission contact portion may have the same thickness.

  In the electrical connector of the present invention, the thickness of the signal contact portion parallel to the arrangement direction of the contacts is smaller than the thickness of the other part of the contact parallel to the arrangement direction. Therefore, even if θ shift occurs in the signal transmission member and the signal terminal of the signal transmission member is displaced relative to the signal contact portion, the possibility that the signal contact portion contacts the signal terminal that is not a contact target is reduced. be able to. Therefore, according to the present invention, the possibility of a short circuit between the signal terminals of the signal transmission member can be reduced.

It is a perspective view (the 1) of an electrical connector concerning an embodiment of the invention. It is a perspective view (the 2) of the electrical connector which concerns on one embodiment of this invention. It is a top view of a signal transmission member. FIG. 4A is a perspective view of the first contact. FIG. 4B is a top view of the first contact. FIG. 4C is a side view of the first contact. FIG. 4D is a bottom view of the first contact. FIG. 4E is a front view of the first contact. FIG. 5A is a perspective view of the second contact. FIG. 5B is a top view of the second contact. FIG. 5C is a side view of the second contact. FIG. 5D is a bottom view of the first contact. FIG. 5E is a front view of the second contact. FIG. 6A is a front view of the electrical connector of FIG. FIG. 6B is a cross-sectional view taken along line AA in FIG. FIG. 6C is a cross-sectional view taken along the line BB in FIG. FIG. 7A is a diagram illustrating a gap provided in the beam on the upper side of the first contact. FIG. 7B is a diagram illustrating a gap provided in the lower beam of the first contact. FIG. 7C is a diagram showing a gap provided in the beam on the upper side of the second contact. FIG. 7D is a diagram illustrating a gap provided in the lower beam of the second contact. It is a figure which shows the state before inserting a signal transmission member in the electrical connector of FIG. It is a figure which shows a state when a signal transmission member is inserted in the electrical connector of FIG. FIG. 10A is a front view of the electrical connector of FIG. FIG. 10B is a DD cross-sectional view in a state where the inserted signal transmission member has no θ shift. FIG. 10C is a cross-sectional view taken along the line DD in a state where a θ shift has occurred in the inserted signal transmission member. FIG. 11A is a diagram showing an electrode short-circuit due to θ shift in a conventional contact. FIG. 11B is a diagram illustrating a state in which an electrode short-circuit due to θ deviation is prevented in the contact according to the embodiment of the present invention. FIG. 12A is a perspective view of a modified example of the first contact. FIG. 12B is a top view of a modified example of the first contact. FIG. 12C is a side view of a modified example of the first contact. FIG. 12D is a bottom view of a modified example of the first contact. FIG. 12E is a front view of a modified example of the first contact.

  An electrical connector 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. The electrical connector 10 is a substantially flat rectangular parallelepiped as a whole, and has a longitudinal direction, a lateral direction, and a thickness direction with respect to its shape. In each figure, an orthogonal coordinate system (xyz coordinate system) is set in which the short direction of the electrical connector 10 is the x-axis direction, the longitudinal direction is the y-axis direction, and the thickness direction is the z-axis direction. refer. Moreover, the arrow direction of each axis is represented by + (plus), and the opposite direction is represented by-(minus).

  As shown in FIGS. 1 and 2, the electrical connector 10 includes a housing 11 that is a flat rectangular parallelepiped, a plurality of contacts 12 that are arranged in the housing 11, and an actuator that is rotatably attached to the housing 11. 13, and lock portions 14 disposed at both ends in the longitudinal direction of the housing 11.

  The housing 11 is made of an insulating material such as resin, and is disposed, for example, on a wiring board of an electronic device or the like with the surface on the −z side facing. In the housing 11, an insertion port 15 into which an FPC 50 (see FIG. 3) which is an example of a plate-shaped signal transmission member can be inserted is formed on the −x side surface. In the insertion port 15, the opening cross section extends in the longitudinal direction, the opening on the near side is wide, and the opening on the back side is narrow. In the housing 11, an insertion port 16 for inserting a second contact 12 b described later is provided on the opposite side of the insertion port 15.

  As shown in FIG. 3, the FPC 50 to be inserted into the insertion port 15 of the housing 11 has an electrode 51 connected to the wiring on one surface thereof. As the electrode 51, a first electrode 51 a provided on one end side of the FPC 50 and a second electrode 51 b provided apart from one end side of the FPC 50 are provided. Further, the FPC 50 is formed with a cutout portion 52 that is locked to the lock portion 14.

  The housing 11 is provided with a flat plate-shaped receiving portion 11 a that receives the FPC 50 inserted into the insertion port 15 from the wiring board side (lower side). The lower receiving portion 11 a extends in the short direction of the contacts 12 and extends in the arrangement direction of the contacts 12. The receiving portion 11a is provided with a mounting surface Sa on which the contact 12 is mounted.

  Moreover, the housing 11 is provided with a plurality of rib portions 11b on the mounting surface Sa of the receiving portion 11a. Each rib portion 11 b extends in the short direction of the housing 11 and is arranged in parallel in the longitudinal direction of the housing 11 at equal intervals. A plurality of concave grooves Za that are arranged in the longitudinal direction of the housing 11 and extend in the short direction of the housing 11 are formed by the lower receiving portion 11a and the rib portions 11b.

  An upper plate portion 11 c is provided on the opposite side of the lower receiving portion 11 a of the housing 11 across the insertion port 15. A rib portion 11d is also provided on the surface facing the lower plate portion 11a of the upper plate portion 11c so as to face the rib portion 11b, and the groove Zb corresponding to the groove Za is formed by the upper plate portion 11c and the rib portion 11d. Is formed.

  The contact 12 is a conductor formed of a plate-like metal or the like and has elasticity. Two types of contacts 12 are used. A first contact 12a and a second contact 12b. The first contact 12 a is disposed at a position corresponding to the first electrode 51 a of the FPC 50 inserted into the housing 11. The second contact 12 b is disposed at a position corresponding to the second electrode 51 b of the FPC 50 inserted into the housing 11. Accordingly, the first contacts 12a and the second contacts 12b are alternately arranged in the longitudinal direction (y-axis direction) of the housing 11.

  When the electrical connector 10 is assembled (before the actuator 13 is attached to the housing 11), the first contact 12a is inserted from the insertion port 15 and slides from the front side of the insertion port 15 to the back side of the insertion port 15. In this way, it is inserted into the housing 11.

  On the other hand, the second contact 12b is inserted from the insertion port 16 when the electrical connector 10 is assembled (before the actuator 13 is attached to the housing 11), and from the back side of the insertion port 15 to the front side of the insertion port 15. It is inserted into the housing 11 so as to slide.

  At this time, the first contact 12 a and the second contact 12 b are inserted into the groove Za of the housing 11 and press-fitted into the groove Zb or locked to the housing 11, thereby being fixed to the housing 11. Become.

  As shown in FIGS. 4A to 4E, the first contact 12a includes a pair of beams (a lower beam 12ab and an upper beam 12au). The lower beam 12ab is longer than the upper beam 12au. As shown in FIG. 6B, which is a cross-sectional view taken along the line AA in FIG. 6A, the lower beam 12ab and the upper beam 12au are extended in the short direction of the housing 11. The lower beam 12ab is fitted on the groove Za side, and the upper beam 12au is fitted on the groove Zb side. The lower beam 12ab is provided with locking portions 12ah1 and 12ah2. The lower beam 12ab is locked and fixed to the housing 11 by the locking portions 12ah1 and 12ah2.

  Further, the first contact 12a includes a connecting portion 12as that connects the lower beam 12ab and the upper beam 12au near the center thereof. Since the lower beam 12ab and the upper beam 12au are connected by the connection portion 12as, the outer shape of the first contact 12a is substantially H-shaped.

  The lower beam 12ab is divided into a front lower beam 12abf on one side (insertion port 15 side) and a rear lower beam 12abb on the other side (insertion port 16 side) with the connection portion 12as as a boundary. The upper beam 12au is divided into a front upper beam 12auf on one side (insertion port 15 side) and a rear upper beam 12aub on the other side (insertion port 16 side) with the connection portion 12as as a boundary.

  The rear lower beam 12abb and the rear upper beam 12aub are disposed on the insertion port 16 side of the housing 11. Between the rear lower beam 12abb and the rear upper beam 12aub, a cam portion 13c having a substantially elliptical cross section in an actuator 13 described later is located.

  The actuator 13 can be rotated with respect to the housing 11 by holding the cam portion 13c of the actuator 13 with the rear lower beam 12abb and the rear upper beam 12aub. Therefore, the cam portion 13c can rotate around the axis 13d in accordance with the rotation of the actuator 13, and the rear upper beam 12aub is provided with a slit 13e (see FIG. 6 (FIG. 6)) provided at a position directly above the cam portion 13c. B) and FIG. 6 (C)).

  As shown in FIG. 6B, the front lower beam 12abf and the front upper beam 12auf are disposed on the inner periphery of the insertion port 15 of the housing 11. The front lower beam 12abf extends in the short direction of the housing 11, and is in contact with and held by the groove Za formed by the rib portion 11b. The front upper beam 12auf extends in the short direction of the housing 11, and is fitted and held in the groove Zb.

  A first signal contact portion 12 auc is provided at the end of the front upper beam 12 auf on the front side of the insertion port 15. The first signal contact portion 12 auc is convex toward the first electrode 51 a of the FPC 50 inserted into the housing 11, and a part of the first signal contact portion 12 auc is exposed from the housing 11 in a protruding state. ing. The 1st signal contact part 12auc is arranged so that contact with the 1st electrode 51a is possible.

  The thickness of the first signal contact portion 12 auc parallel to the arrangement direction of the contacts 12 is smaller than the thickness of the front upper beam 12 auf parallel to the arrangement direction of the contacts 12. Accordingly, as shown in FIG. 7A, a gap is formed between the first signal contact portion 12auc and the wall surface of the groove Zb (the wall surface formed by the rib 11d).

  On the other hand, the front lower beam 12abf includes a first contact portion 12abc at a position facing the first signal contact portion 12auc so that the FPC 50 inserted into the housing 11 can be sandwiched together with the front upper beam 12auf. The first contact portion 12abc is convex toward the other surface of the FPC 50 inserted into the housing 11, and is disposed so as to be in contact with the other surface of the FPC 50 inserted into the housing 11. The thickness of the first contact portion 12abc parallel to the arrangement direction of the contacts 12 is smaller than the thickness of the front lower beam 12abf parallel to the arrangement direction of the contacts 12. As a result, as shown in FIG. 7B, a gap d is formed between the first contact portion 12abc and the wall surface of the groove Za (the wall surface formed by the rib portion 11b).

  The thickness of the first signal contact portion 12 auc and the thickness of the first contact portion 12 abc in the arrangement direction of the contacts 12 are the same. By making the thicknesses the same, the FPC 50 can be stably held. Further, the thickness of the first signal contact portion 12 auc and the thickness of the first contact portion 12 abc are the thinnest among the contacts 12. In this way, the wall of the housing 11 (the ribs 11b and 11d) between the contacts 12 is maintained and the arrangement pitch of the contacts 12 is kept constant, and the wall surface of the housing 11 and the first signal contact portions 12auc and the first Since the gap d between the contact portion 12abc and the contact portion 12abc can be made wider, it is possible to prevent the later-described θ deviation from occurring and to prevent the flux from rising.

  The front lower beam 12abf includes a first substrate connection portion 12a_sub_c that is soldered (connectable to an electrode) to an electrode of a wiring substrate such as an electronic device, for example, at an end portion on the near side of the insertion port 15. The first substrate connecting portion 12a_sub_c is in a state where it is entirely exposed except the connecting surface. A gap for releasing the solder is provided between the first board connecting portion 12a_sub_c and the locking portion 12ah1.

  Subsequently, as shown in FIGS. 5A to 5E, the second contact 12b includes a pair of beams (a lower beam 12bb and an upper beam 12bu). The lower beam 12bb is longer than the upper beam 12bu. As shown in FIG. 6C, which is a BB cross-sectional view of FIG. 6A, the lower beam 12bb and the upper beam 12bu are extended in the short direction of the housing 11. The lower beam 12bb is fitted into the groove Za side, and the upper beam 12bu is fitted into the groove Zb. The lower beam 12bb is provided with a locking portion 12bh1. The locking portion 12 bh 1 is locked with the housing 11, and a part of the rear lower beam 12 bbb is curved in the longitudinal direction of the housing 11. The lower beam 12bb is fixed in the housing 11 by locking the locking portion 12bh1 and by pressing the curved portion of the rear lower beam 12bbb into the groove Zb.

  Further, the second contact 12b includes a connection portion 12bs that connects the lower beam 12bb and the upper beam 12bu in the vicinity of the center thereof. Since the lower beam 12bb and the upper beam 12bu are connected by the connecting portion 12as, the outer shape of the second contact 12b is substantially H-shaped.

  The lower beam 12bb is divided into a front lower beam 12bbf on one side (insertion port 15 side) and a rear lower beam 12bbb on the other side (insertion port 16 side) with the connection portion 12bs as a boundary. The upper beam 12bu is divided into a front upper beam 12buf on one side (insertion port 15 side) and a rear upper beam 12bub on the other side (insertion port 16 side) with the connection portion 12bs as a boundary.

  The upper and lower beam groups (rear lower beam 12bbb and rear upper beam 12bb) are arranged on the insertion port 16 side of the housing 11. Between the rear lower beam 12bbb and the rear upper beam 12bb, a cam portion 13c having a substantially elliptical cross section in an actuator 13 described later is located.

  The actuator 13 can be rotated with respect to the housing 11 by holding the cam portion 13c of the actuator 13 with the rear lower beam 12bbb and the rear upper beam 12bub. For this reason, the cam portion 13c can be rotated around the axis 13d in accordance with the rotation of the actuator 13, and the rear upper beam 12bub on the other side of the second contact 12b is positioned immediately above the cam portion 13c. Is inserted into a slit 13e (see FIG. 6B and FIG. 6C) provided in the head.

  As shown in FIG. 6C, the upper and lower beam sets (front lower beam 12bbf and front upper beam 12buf) on the insertion port 15 side are arranged on the inner periphery of the insertion port 15 of the housing 11. The front lower beam 12bbf extends in the short direction of the housing 11, and is in contact with and held by the groove Za formed by the rib portion 11b. The front upper beam 12buf extends in the short direction of the housing 11, and is fitted and held in the groove Zb.

  A second signal contact portion 12buc is provided at the end of the front upper beam 12buf on the front side of the insertion port 15. The second signal contact portion 12buc is convex toward the second electrode 51b of the FPC 50 inserted into the housing 11, and is exposed with a part of the second signal contact portion 12buc protruding. The second signal contact portion 12buc is disposed so as to be in contact with the second electrode 51b. The thickness of the second signal contact portion 12buc parallel to the arrangement direction of the contacts 12 is thinner than the thickness of the rear upper beam 12bub parallel to the arrangement direction of the contacts 12. Thereby, as shown in FIG. 7C, a gap d is formed between the second signal contact portion 12buc and the wall surface of the groove Zb (the wall surface formed by the rib portion 11d).

  On the other hand, the front lower beam 12bbf includes a second contact portion 12bbc at a position facing the second signal contact portion 12buc. The second contact portion 12bbc is convex toward the other surface of the FPC 50 inserted into the housing 11, and is disposed so as to be in contact with the other surface of the FPC 50 inserted into the housing 11. The thickness of the second contact portion 12bbc parallel to the arrangement direction of the contacts 12 is smaller than the thickness of the front lower beam 12bbf parallel to the arrangement direction of the contacts 12. As shown in FIG. 7D, a gap d is thereby formed between the second contact portion 12bbc and the groove Za.

  The thickness of the second signal contact portion 12buc and the thickness of the second contact portion 12bbc in the arrangement direction of the contacts 12 are the same. By making the thicknesses the same, the FPC 50 can be stably held. The thickness of the second signal contact portion 12buc and the thickness of the second contact portion 12bbc are the thinnest among the contacts 12. In this way, while maintaining the thickness of the walls (ribs 11b and 11d) between the contacts 12 of the housing 11 and maintaining the arrangement pitch of the contacts 12, the wall surface of the housing 11, the first signal contact portion 12auc, and the first Since the gap d with the contact portion 12abc can be made larger, it is possible to make it difficult for the later-described θ shift to occur and to reliably prevent the flux from rising.

  Further, the rear lower beam 12bbb is soldered to an end of the housing 11 on the insertion port 16 side (at the end on the back side of the insertion port 15), for example, soldered to an electrode of a wiring board such as an electronic device. A connection unit 12b_sub_c is provided. The second substrate connection portion 12b_sub_c is in a state where it is entirely exposed except for the connection surface. A gap for releasing the solder is provided between the second substrate connection portion 12b_sub_c and the locking portion 12bh1.

  For example, as shown in FIGS. 1 and 2, the actuator 13 is disposed on the insertion port 16 side (the side opposite to the insertion port 15 side) of the housing 11. As shown in FIGS. 6A, 6B, and 6C, the actuator 13 includes an operation portion 13a that extends along the longitudinal direction (y-axis direction) of the housing 11.

  In addition, the actuator 13 is integrally provided with a plurality of cam portions 13c each having a short axis and a long axis whose cross sections are orthogonal to each other by operating the first contact 12a and the second contact 12b. As described above, the cam portion 13c has a pair of beams (the rear upper beam 12aub and the rear lower beam 12abb) on the other side of the first contact 12a and a pair of beams (the rear upper side) on the other side of the second contact 12b. Beam 12bub and rear lower beam 12bbb).

  The connection operation of the electrical connector 10 composed of the above-described members will be described. In the electrical connector 10 in which at least the first board connecting part 12a_sub_c and the second board connecting part 12b_sub_c are already connected to the electrodes of the wiring board by soldering, the actuator 13 is in an open state shown in FIG. 13 is in a state substantially perpendicular to the insertion direction of the FPC 50), each pair of beams sandwiching the cam portion 13c of the first contact 12a and the second contact 12b (the rear lower beam 12abb and the rear upper beam 12aub, the rear As shown in FIGS. 6B and 6C, the lower beam 12bbb and the rear upper beam 12bub sandwich two points forming a short axis on the cross section of the cam portion 13c.

  As a result, the distance between the pair of beams in front of the first contact 12a and the second contact 12b (the front lower beam 12abf and the front upper beam 12auf, the front lower beam 12bbf and the front upper beam 12buf) is locked by the actuator 13. It is wider than in the state (the actuator 13 is wider than when it is substantially horizontal with respect to the insertion direction of the FPC 50).

  For this reason, since the contact pressure of the contact 12 is not applied or slightly applied to the FPC 50, the user inserts the FPC 50 into the insertion port 15 of the housing 11 as shown in FIG. The FPC 50 can be accommodated in the housing 11 (can be moved in the + x direction).

  When the operator rotates the opened actuator 13 as shown by the arrows in FIGS. 6B and 6C, the actuator 13 is inserted into the FPC 50 as shown in FIG. It becomes a substantially horizontal state with respect to the direction, that is, a locked state. While the actuator 13 is being rotated from the open state to the locked state, the cam portion 13c of the actuator 13 rotates about the axis 13d.

  When the actuator 13 is in the locked state, the pair of beams (the rear upper beam 12 aub and the rear lower beam 12 abb) on the other side of the first contact 12 a sandwich two points that form the long axis on the cross section of the cam portion 13 c. It becomes like this. As a result, the rear upper beam 12aub on the other side of the first contact 12a is pushed up.

  Similarly, when the actuator 13 is in the locked state, a pair of beams (the rear upper beam 12 bb and the rear lower beam 12 bbb) on the other side of the second contact 12 b form a long axis on the cross section of the cam portion 13 c 2. A point is inserted. This pushes up the rear upper beam 12bu on the other side of the second contact 12b.

  By this push-up, the front upper beam 12auf of the first contact 12a and the front upper beam 12buf of the second contact 12b oscillate. At this time, the distance between the pair of beams (front upper beam 12auf and front lower beam 12abf) on one side of the first contact 12a and the pair of beams (front upper beam 12buf on one side of the second contact 12b). The distance between the front lower beam 12bbf) is narrower than when the actuator 13 is in the open state. Accordingly, the first signal contact portion 12 auc and the first electrode 51 a are in contact with the second signal contact portion 12 buc and the second electrode 51 b (the contact pressure of the contact 12 is applied to the FPC 50. State). That is, the contact between the first and second signal contact portions 12 auc and 12 buc and the first electrode 51 a and the second electrode 51 b is realized by pressing the contacts 12 a and 12 b by the rotation of the cam portion 13 c.

  When the actuator 13 is locked, the lock portion 14 has the same structure as the first and second contacts 12a and 12b. Therefore, the lock portion 14 is cut by driving the cam portion 13c. Locked to the notch 52. Accordingly, the FPC 50 is housed in the regular position in the housing 11, the movement in the −x direction that is the removal direction of the FPC 50 is restricted, the housing 11 is completely housed, and the first electrode 51 a of the FPC 50 is completed. In addition, the second electrode 51b and the electrode corresponding to each of the wiring boards are connected.

  The operation of the electrical connector 10 described above will be described.

  As shown in FIG. 10B, which is a DD cross-sectional view of FIG. 10A, when the FPC 50 is normally inserted into the insertion port 15, the first electrode 51 a Only the contact 12a is in contact, and the second electrode 51b is in contact only with the second contact 12b. However, in practice, as shown in FIG. 10C which is a DD cross-sectional view of FIG.

  In such a case, for example, if the thickness of the second signal contact portion 12buc in the arrangement direction of the contacts 12 is the same as that of other portions, the second signal contact portion 12buc as shown in FIG. The portion (hatched portion) in contact with the FPC 50 extends over both the first electrode 51a and the second electrode 51b, and there is a high possibility that both will short-circuit.

  Therefore, in the present embodiment, the thickness in the arrangement direction of the contacts 12 of the first signal contact portion 12 auc and the second signal contact portion 12 buc is thinner than the other portions. For this reason, as shown in FIG. 11B, for example, even if the FPC 50 is displaced by θ at the same angle as that in FIG. 11A, the second signal contact portion 12buc is in contact with the FPC 50 (hatched portion). ) Is less likely to come into contact with the first electrode 51a, so that the possibility of a short circuit between the electrodes can be reduced.

  The θ shift becomes a problem that cannot be ignored as the arrangement interval of the first and second contacts 12a and 12b is shortened (narrow pitch). The electrical connector 10 according to the present embodiment is suitable for narrowing the pitch.

  Further, as described above, the first board connecting portion 12a_sub_c is soldered to the wiring board on which the electrical connector 10 is mounted. In this case, the flux may be transmitted between the first contact 12a and the rib portions 11b and 11d by a capillary phenomenon, so that a so-called flux increase may occur. However, as shown in FIG. 7B, a large gap d that does not cause capillary action is provided between the first contact portion 12abc and the rib portion 11b, so that the flux cannot be transmitted any further. . Therefore, according to the electrical connector 10 of the present embodiment, it is possible to prevent the flux from adhering to the first signal contact portion 12auc of the upper beam 12au and causing a contact failure. The same applies to the first contact portion 12abc (see FIG. 7B).

  Further, according to the electrical connector 10 of the present embodiment, when the second board connection portion 12b_sub_c is soldered to the electrode of the wiring board, the flux is caused by the capillary phenomenon to cause the second contact 12b and the rib portions 11b and 11d. Or the like, and may reach the second signal contact portion 12buc to cause contact failure. However, as shown in FIG. 7C, a large gap d is provided between the second signal contact portion 12buc and the rib portion 11d so as not to cause an increase in flux due to capillary action. Thereby, the flow of the flux is stopped, and it is possible to prevent the flux from adhering to the second signal contact portion 12buc and causing a contact failure. The same applies to the second contact portion 12bbc (see FIG. 7D).

  Further, according to the electrical connector 10 of the present embodiment, since the thickness of the first and second contacts 12a and 12b is reduced, it is not necessary to reduce the thickness of the housing 11. For this reason, the structural strength of the housing 11 can be maintained. Further, it is not necessary to leave a space between the first and second contacts 12a and 12b. For this reason, the above-described prevention of θ deviation and prevention of flux adhesion can be realized even if the arrangement interval of the first and second contacts 12a and 12b is shortened (narrow pitch).

  In addition, in the electrical connector 10 of the present embodiment, as another means for preventing the occurrence of contact failure, for example, it is not necessary to provide a through hole for discharging solder or flux in the receiving portion 11a. Therefore, it is not necessary to provide a region where wiring is prohibited on the wiring board on which the electrical connector 10 is mounted. Therefore, according to the electrical connector 10 of the present embodiment, it is possible to design the circuit of the wiring board without providing restrictions.

  As described above in detail, according to the electrical connector 10 of the present embodiment, the thickness of the first and second signal contact portions 12 auc and 12 buc parallel to the arrangement direction of the contacts 12 is equal to the arrangement direction of the contacts 12. The thickness of the other part of the contact 12 is smaller than that of the contact 12. Therefore, even if a θ shift occurs in the FPC 50 and the signal terminal of the FPC 50 is displaced with respect to the first and second signal contact portions 12 auc and 12 buc, the first and second signal contact portions 12 auc and 12 buc are The possibility of contacting a signal terminal that is not a contact target can be reduced. Therefore, according to the present embodiment, the possibility of short circuit between the first electrode 51a and the second electrode 51b of the FPC 50 can be reduced.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and applications are possible.

  For example, the widths of the gaps d shown in FIGS. 7A to 7D may be different from each other. Further, the thickness of the first and second signal contact portions 12 auc and 12 buc need not be the thinnest of the first and second contacts 12 a and 12 b.

  In addition, the first contact 12a may have a shape as shown in FIGS. 12A to 12E. In the first contact 12a, in the first signal contact portion 12auc, the thickness in the arrangement direction of the contacts 12 is limited to the portion protruding to the inner periphery of the insertion port 15 and its periphery. Yes. Even if it does in this way, since it can prevent that a flux penetrates into the part which contacts the electrode 51 of FPC50, possibility of the short circuit of an electrode by (theta) shift will be reduced, and the contact failure by flux may be prevented. it can.

  Note that the other surface of the FPC 50 may be provided with conductive transmission terminals similar to those of the first electrode 51a and the second electrode 51b. In this case, the first and second contact portions 12abc and 12bbc are disposed so as to be able to contact the transmission terminal of the FPC 50 and serve as signal contact portions with the transmission terminal. In this case, the actuator 13 further realizes contact between the first and second contact portions 12abc, 12bbc and the transmission terminal by the pressing of the contact 12 by the rotation of the cam portion 13c, and makes them conductive. Become.

  In the second contact 12b, the rear lower beam 12bbb may be provided with a thinner part than the other parts. In this way, it is possible to prevent the flux from being transmitted from the second substrate connection part 12b_sub_c by the rear lower beam 12bbb.

  For example, in the electrical connector 10 of the above-described embodiment, the actuator 13 is a type that rotates with respect to the housing 11, but is not limited thereto. The actuator may be of a type that slides relative to the housing 11.

  In this case, the actuator is attached to the housing 11 so as to be slidable from the insertion port 15 side to the insertion port 16 side and from the insertion port 16 side to the insertion port 15 side.

  When this actuator moves to the insertion port 15 side, it comes into contact with and presses the front upper beam 12 auf and the front upper beam 12 buf. Thereby, the front upper beam 12auf and the front upper beam 12buf are swung. At this time, the distance between the front upper and lower beams 12 auf and 12 abf and the distance between the front upper and lower beams 12 buf and 12 bbf are narrower than when the actuator moves to the insertion port 16 side. Accordingly, the first signal contact portion 12 auc and the first electrode 51 a and the second signal contact portion 12 buc and the second electrode 51 b are in contact with each other.

  On the other hand, when the actuator moves to the insertion port 16 side, the contact of the actuator with the front upper beam 12auf and the front upper beam 12buf is released, and the actuator returns to the unpressed state. At this time, the distance between the front upper and lower beams 12 auf and 12 abf and the distance between the front upper and lower beams 12 buf and 12 bbf are wider than when the actuator moves to the insertion port 15 side. As a result, the first signal contact portion 12 auc and the first electrode 51 a and the second signal contact portion 12 buc and the second electrode 51 b are in a non-contact state (or in a state where they are in light contact with each other). ).

  Thus, the electrical connector 10 may include an actuator that can slide relative to the housing 11 instead of the actuator 13 that can rotate relative to the housing 11.

  Moreover, although the electrical connector 10 according to the above-described embodiment includes the lock portion 14, it is not limited to this. That is, the electrical connector 10 of the above-described embodiment may not include the lock portion 14.

  Moreover, although the electrical connector 10 of the above-described embodiment is intended for the FPC 50, it may be intended for an FFC (flexible flat cable).

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. In other words, the scope of the present invention is indicated by the scope of claims, not the embodiment described above. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

  10 electrical connector, 11 housing, 11a lower receiving part, 11b rib part, 11c upper plate part, 11d rib part, 12 contact, 12a first contact, 12b second contact, 12au, 12bu upper beam, 12ab, 12bb lower Beam, 12as, 12bs Connection, 12abf, 12bbf Front lower beam, 12abb, 12bbb Rear lower beam, 12auf, 12buf Front upper beam, 12aub, 12bu Rear upper beam, 12auc First signal contact, 12abc First contact , 12a_sub_c first board connection part, 12buc second signal contact part, 12bbc second contact part, 12b_sub_c second board connection part, 12ah1, 12ah2, 12bh1 locking part, 13 actuator, 13a operation part, 3c cam part, 13d shaft center, 13e slit, 14 lock part, 15 insertion slot, 16 insertion slot, 50 FPC, 51 electrode, 51a first electrode, 51b second electrode, 52 notch part, Sa mounting Surface, Za, Zb groove.

Claims (6)

An insulating housing having an insertion port into which a plate-like signal transmission member can be inserted;
A signal contact portion disposed on an inner periphery of the insertion port of the housing and disposed so as to be able to contact a signal terminal provided on one surface of a signal transmission member inserted into the housing through the insertion port. A plurality of conductive contacts;
The signal contact portion and the signal terminal are attached to the housing so as to be movable and have a contact portion configured to be able to contact the contact, and the contact point is pressed by the movement of the contact portion. An actuator that realizes contact with
With
The thickness of the signal contact portion parallel to the arrangement direction of the contacts is thinner than the thickness of the other part of the contact parallel to the arrangement direction.
An electrical connector characterized by that. The signal contact portion is convex toward the signal terminal of the signal transmission member inserted into the housing.
The electrical connector according to claim 1. The contact has a transmission contact portion disposed so as to be able to contact a transmission terminal provided on the other surface of the signal transmission member inserted into the housing at a position facing the signal contact portion,
The actuator further realizes contact between the transmission contact portion and the transmission terminal by pressing the contact by movement of the contact portion,
The thickness of the transmission contact portion parallel to the arrangement direction of the contacts is thinner than the thickness of the other part of the contacts parallel to the arrangement direction.
The electrical connector according to claim 1. The transmission contact portion is convex toward a transmission terminal of a signal transmission member inserted into the housing.
The electrical connector according to claim 3. The thickness of the signal contact portion and the thickness of the transmission contact portion, which are parallel to the arrangement direction of the contacts, are the thinnest among the contacts.
The electrical connector according to claim 3. The signal contact portion and the transmission contact portion have the same thickness.
The electrical connector according to claim 3.

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