JP5979418B2 - Electrical connector - Google Patents

Description

  The present invention relates to an electrical connector provided with a lock mechanism for holding a signal transmission medium inserted into an insulating housing.

  In general, various electrical connectors are widely used as means for electrically connecting various signal transmission media such as a flexible printed circuit (FPC) and a flexible flat cable (FFC) in various electrical devices. It is used. For example, in an electrical connector that is mounted and used on a printed wiring board as in Patent Document 1 below, a signal transmission medium made of FPC, FFC, or the like is inserted into the inside from an opening on the front end side of an insulating housing (insulator). Thereafter, the actuator (connection operation means) is rotated so as to be pushed down toward the connection operation position on the front side or the rear side of the connector by the operator's operation force. Accordingly, a part of the lock member is fitted into an engaging portion provided in the terminal portion of the signal transmission medium so as to be engaged, and the terminal portion of the signal transmission medium is held substantially immovable by the lock member. Has been made.

  As described above, the electrical connector provided with the actuator is configured to operate engagement / disengagement of the lock member by rotating the actuator between the connection release position and the connection operation position. Since it is necessary to operate the actuator separately from the operation of inserting a medium (FPC, FFC, etc.), the work efficiency may be a problem. Therefore, for example, as disclosed in Patent Documents 2 and 3 below, the signal transmission medium inserted into the insulating housing is elastically displaced so that a part of the lock member rides on the signal transmission medium, and then the signal transmission medium is engaged. In some cases, an electrical connector having a so-called one-action auto-lock mechanism that is configured such that a part of the lock member falls into the joint portion to be engaged may be employed. If an electrical connector equipped with such a one-action auto-lock mechanism is used, the signal transmission medium can be held in a substantially stationary state simply by inserting the signal transmission medium to a predetermined position inside the electrical connector. Is improved.

  However, the one-action auto-lock mechanism used in the conventional electrical connector has an advantage that the signal transmission medium (FPC, FFC, etc.) is locked and held only by inserting it into the electrical connector as described above. However, there are various thicknesses of the signal transmission medium, and there is a problem that the amount of engagement with the lock member varies accordingly. In particular, when the thickness of the signal transmission medium is small, a space is generated between the signal transmission medium and the medium insertion path even if the thickness is within the dimensional tolerance, and signal transmission is performed in the space. When the medium moves in the direction opposite to the locking portion of the lock member, the engagement amount of the lock member with respect to the signal transmission medium decreases, so that there is a possibility that the holding force of the signal transmission medium cannot be obtained sufficiently.

JP 2003-100370 A JP 2009-231069 JP 2011-204509 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connector that can maintain a signal transmission medium in a good holding state with a simple configuration regardless of variations in the thickness of the signal transmission medium.

To achieve the above object, according to the present invention, a lock having a locking portion for engaging with a signal transmission medium inserted into an insulating housing extending in the connector longitudinal direction and holding the signal transmission medium in an inserted state. An electrical connector provided with a member, wherein the locking lock portion is configured to engage with the signal transmission medium by elastically returning after being elastically displaced in contact with the signal transmission medium. The lock member is formed of an integrally folded structure made of a thin plate-like metal member, and the lock member includes a fixed substrate fixed to the insulating housing and one end edge portion of the fixed substrate. It includes a board connecting portion which integrally extend, and a medium pressing piece made of cantilever-shaped elastic flexible member for pressing against the signal transmission medium with the locking lock unit from the medium Elastic flexible members constituting the pressing piece, together extends the arm-shaped having the connectors longitudinally plate width, pressing the signal transmission medium is a part of the medium pressure piece A portion to be opposed to the locking lock portion in the thickness direction of the signal transmission medium , and the medium pressing piece is connected to the substrate connecting portion provided at one end edge portion of the fixed substrate. In other words, a configuration is adopted in which it rises substantially perpendicularly from a position adjacent to the connector longitudinal direction .

According to the present invention having such a configuration, the signal transmission medium inserted into the insulating housing and held by the locking lock portion rises upward with a certain plate width from a position adjacent to the board connecting portion. The medium pressing piece disposed so as to face the locking portion is pressed toward the locking portion by the elastic biasing force, thereby increasing the amount of engagement between the signal transmission medium and the locking portion. Therefore, the signal transmission medium is reliably held by the lock member.

  At this time, the insulating housing in the present invention is formed with a medium mounting surface for supporting the signal transmission medium inserted into the insulating housing, and the locking is performed with respect to the medium mounting surface of the insulating housing. The lock portion is configured to protrude and retract, and the medium pressing piece is disposed so as to face the medium placement surface of the insulating housing in the thickness direction of the signal transmission medium. Is desirable.

  Further, in the present invention, the portion where the medium pressing piece presses the signal transmission medium is a region deeper than the locking lock portion in the insertion direction of the signal transmission medium, and the medium mounting surface of the insulating housing. It is desirable that they are arranged so as to face each other.

  According to the present invention having such a configuration, the signal transmission medium is brought into contact with the medium mounting surface of the insulating housing by the pressing force of the medium pressing piece, and the medium pressing piece and the medium mounting of the insulating housing are arranged. The signal transmission medium is sandwiched between the surface and the signal transmission medium is more stably held.

Or electrical connector according to the present invention, as mentioned, the locking member having a lock portion for holding the signal transmission medium engages the inserted signal transmission medium in the insulating housing in the insertion state, the substrate A medium pressing piece made of a cantilevered elastic flexible member having a certain width for rising upward from a position adjacent to the connecting portion and pressing the signal transmission medium toward the locking lock portion is provided. A part of the signal transmission medium that presses the signal transmission medium is arranged so as to face the locking lock part in the thickness direction of the signal transmission medium, so that it is inserted into the insulating housing and held by the locking lock part. The signal transmission medium thus pressed is pressed toward the locking lock portion by the elastic biasing force of the medium pressing piece arranged to face the locking lock portion, and the signal transmission medium and the locking lock portion are engaged with each other. Since the signal transmission medium is securely held by the lock member by increasing the amount, the signal transmission medium can be satisfactorily held with a simple structure regardless of the thickness variation of the signal transmission medium. The state can be maintained, and the reliability of the electrical connector can be greatly improved at low cost.

It is an appearance perspective explanatory view showing the state before inserting a signal transmission medium to the electric connector concerning one embodiment of the present invention from the front side upper part. FIG. 2 is an external perspective explanatory view corresponding to FIG. 1 showing an insertion completion state in which a signal transmission medium is inserted to an engagement position with respect to the electrical connector shown in FIG. 1. FIG. 3 is an explanatory plan view of the electrical connector shown in FIGS. 1 and 2. It is front explanatory drawing of the electrical connector represented to FIG.1 and FIG.2. FIG. 3 is an explanatory bottom view of the electrical connector shown in FIGS. 1 and 2. FIG. 3 is an explanatory rear view of the electrical connector shown in FIGS. 1 and 2. It is the external appearance perspective explanatory view which showed the locking member used for the electrical connector represented by FIGS. 1-6 from the outer side upper side of the connector longitudinal direction. FIG. 8 is an external perspective explanatory view showing a lock member used in the electrical connector shown in FIG. 7 from above on the inner side (connector center side) in the connector longitudinal direction. It is longitudinal cross-sectional explanatory drawing along the IX-IX line in FIG. It is longitudinal cross-sectional explanatory drawing along the XX line in FIG. 4 just before insertion of a signal transmission medium. FIG. 11 is a longitudinal sectional explanatory view corresponding to FIG. 10 showing a state in the middle of inserting a signal transmission medium from the state of FIG. 10. FIG. 12 is a longitudinal cross-sectional explanatory view corresponding to FIG. 10, illustrating an insertion completion state in which the signal transmission medium is inserted from the state of FIG. 11 to the engagement position. It is longitudinal cross-sectional explanatory drawing equivalent to FIG. 10 showing the state which performed unlocking operation from the state of FIG.

  In the following, the present invention is applied to an electrical connector that is mounted on a wiring board and used for connecting a signal transmission medium such as a flexible printed circuit (FPC) or a flexible flat cable (FFC). The embodiment will be described in detail with reference to the drawings.

[General configuration of electrical connector]
An electrical connector 10 according to an embodiment of the present invention shown in FIGS. 1 to 13 is an electrical connector provided with a so-called non-ZIF type one-action auto-lock mechanism. The signal transmission medium F is automatically locked when the terminal portion of the signal transmission medium (FPC or FFC or the like) F described above is inserted to a predetermined position inside the insulating housing 11. .

[Insulating housing]
The insulating housing 11 is formed of a hollow insulating member extending so as to form an elongated flat plate. The longitudinal width direction of the insulating housing 11 is hereinafter referred to as a “connector longitudinal direction”, and a signal In the direction in which the terminal portion of the transmission medium (FPC or FFC or the like) F is inserted, the upper side is referred to as “connector front” and the lower side is referred to as “connector rear”. Furthermore, the direction orthogonal to both the “connector longitudinal direction” and the “connector longitudinal direction” will be referred to as the “connector vertical direction”.

  As described above, the front end edge portion (left end edge portion in FIG. 9) of the insulating housing 11 has a terminal of the signal transmission medium F composed of a flexible printed circuit (FPC), a flexible flat cable (FFC), or the like. A medium insertion slot 11a into which a portion is inserted is provided so as to be elongated along the connector longitudinal direction. From the medium insertion port 11a, a hollow medium insertion passage into which the signal transmission medium F is inserted extends inside the insulating housing 11 toward the rear side of the connector.

  The medium insertion path is defined so as to be surrounded by the inner wall surface of the insulating housing 11, and is slid on the medium placement surface 11b forming the lower surface of the medium insertion path. The signal transmission medium (FPC, FFC, etc.) F is inserted toward the back side (connector rear side) or removed to the front side (connector front side).

  In addition, a component mounting port for mounting a conductive contact 12 and the like to be described later is provided at the connector rear side edge portion (right end edge portion in FIG. 9) opposite to the medium insertion port 11a. It is provided so as to form an elongated shape along the direction. Furthermore, a lock member 13 constituting a lock mechanism and a lock release mechanism, which will be described later, is disposed on the outer side on both sides in the connector longitudinal direction with respect to the medium insertion port 11a from the connector rear side to the front side (left side in FIG. 10). It is press-fitted toward the side).

[About conductive contacts]
The conductive contacts 12 press-fitted into the inside of the insulating housing 11 as described above are arranged in a multipolar shape at appropriate intervals in the connector longitudinal direction, and the conductive contacts 12 are mutually connected. It is formed of a thin metal plate member having substantially the same shape. Each of the conductive contacts 12 is mounted so as to be inserted toward the front side of the connector from the component attachment port provided on the rear end side of the insulating housing 11 into the medium insertion path as described above. A fixed base portion 12 a provided at the rear end portion in the insertion direction of each of the conductive contacts 12 is fixed by being press-fitted into an inner wall portion on the connector rear end side of the insulating housing 11.

  Each of these conductive contacts 12 is used in a state where it is mounted by solder bonding to a conductive path formed on a main printed wiring board (not shown) for either signal transmission or ground connection. . That is, the arrangement position of each conductive contact 12 mounted inside the insulating housing 11 as described above is provided in a signal transmission medium (FPC or FFC or the like) F inserted into the insulating housing 11 through the medium insertion port 11a. The wiring patterns of the signal transmission medium F are arranged with signal transmission conductive paths (signal line pads) or shield conductive paths (shield line pads) at appropriate pitch intervals. It has become.

  The configuration of each conductive contact 12 will be described in detail. First, as described above, the board connecting portion 12a1 is formed at the lower end edge portion of the fixed base portion 12a press-fitted into the connector rear end side wall surface of the insulating housing 11. The board connecting portion 12a1 is solder-connected to a conductive path formed on a main printed wiring board (not shown).

  Further, the pair of movable beams 12b and 12c extend from the fixed base portion 12a to the front side of the connector (left side in FIG. 9) so as to be divided into upper and lower bifurcated shapes. These movable beams 12b and 12c are formed so as to extend integrally from the fixed base 12a on the rear end side of the connector in a cantilevered manner, and the movable beams 12b and 12c are separated from each other in the vertical direction. In this state, the insulating housing 11 extends along a mounting groove formed on the wall surface of the medium insertion passage. The extension side (left side in FIG. 9) of the two movable beams 12b and 12c of the conductive contact 12 having such a configuration is connected to the fixed base 12a which is a connecting portion between the two movable beams 12b and 12c. With the portion or its vicinity as the center, it is configured to swing in the vertical direction within the plane of FIG.

  Furthermore, the signal transmission conductive path formed in the signal transmission medium (FPC or FFC or the like) F is formed on the extension end portion (left end side portion in FIG. 9) of both the movable beams 12b and 12c toward the front side of the connector. Corresponding to any of the shield conductive paths (wiring patterns), the terminal contact convex portions 12b1 and 12c1 are provided so as to have a downward and upward protruding shape so as to face each other vertically. That is, the terminal contact protrusions 12b1 and 12c1 provided on the movable beams 12b and 12c, respectively, are connected to the signal transmission medium F when the signal transmission medium F is inserted into the insulating housing 11 as described above. It is arranged such that it rides on the surface of the wiring pattern F and is sandwiched from above and below, and when the signal transmission medium F is inserted to a predetermined final position (engagement position), both the movable beams 12b and 12c It is maintained in an electrically connected state by being pressed by the elastic force.

[One-action auto-lock mechanism]
As described above, the electrical connector 10 according to the present embodiment includes the one-action auto-lock mechanism. As a premise, the terminal portion of the signal transmission medium (FPC, FFC, etc.) F has, for example, FIG. As shown in the figure, engagement positioning portions Fa each formed of a notch-shaped concave portion are formed at the edge portions on both sides of the signal transmission medium F in the plate width direction (connector longitudinal direction). Then, on the side of the electrical connector 10 corresponding to each engagement positioning portion Fa provided on the signal transmission medium F, lock members 13 constituting a lock mechanism and a lock release mechanism are attached to both side portions in the connector longitudinal direction. The insertion state of the signal transmission medium F is maintained by a locking action (locking action) of a locking lock portion 13a provided on each of the lock members 13.

[About locking members]
As described above, the pair of lock members 13 and 13 disposed on both side portions in the connector longitudinal direction of the insulating housing 11 are symmetrical to each other in the connector longitudinal direction. Only the locking member 13 is performed, and the other is omitted.

  The lock member 13 constitutes a lock mechanism and a lock release mechanism for the signal transmission medium (FPC, FFC, etc.) F. When the signal transmission medium F is inserted into the electrical connector 10, the lock member 13 13, more specifically, a locking edge 13 a to be described later comes into contact with the leading edge of the insertion side of the signal transmission medium F, so that the locking lock 13 a is retracted to the connector lower side (see FIG. 11). At that time, a later-described elastic lock arm member 13e supporting the lock portion 13a is also elastically displaced to the lower side of the connector, and the lock portion 13a is moved upward by the elastic restoring force of the elastic lock arm member 13e. And the engagement state (locked state) is established by being fitted inside the engagement positioning portion Fa of the signal transmission medium F.

  The structure of the lock member 13 will be specifically described. As shown in FIGS. 7 and 8 in particular, the entire lock member 13 is formed of an integral bending structure made of a thin plate-like metal member. However, it has an elongated flat plate-like fixed substrate 13b arranged so as to form part of the bottom surface of the insulating housing 11. The fixed board 13b is arranged so as to face the main printed wiring board (not shown) on the rear side of the connector, but is substantially horizontally disposed on the inner edge portion in the connector longitudinal direction via an upper step. The extending fixed piece 13c is continuously provided, and the fixed piece 13c is press-fitted into the inner wall of the insulating housing 11, whereby the lock member 13 is fixed as a whole.

  Further, as described above, the board connecting portion 13d that extends integrally toward the rear side of the connector is connected to the rear end edge portion (the right end edge portion in FIG. 10) of the fixed board 13b having a flat plate shape. Yes. The board connecting portion 13d extends substantially horizontally from the rear edge (the right edge in FIG. 10) of the fixed board 13b through a descending step, and is a shield formed on the main printed wiring board (not shown). Soldered in a state of being placed on the conductive path (shield wire pad) or the soldering area for fixing.

  Furthermore, the fixed substrate 13b is folded back so that the outer edge portion in the connector longitudinal direction is substantially U-shaped upward. The upper folded portion of the fixed substrate 13b extends substantially horizontally so as to be reversed from the direction toward the outer side in the connector longitudinal direction toward the connector inner side (connector center side) on the opposite side, An elastic lock arm member 13e made of a band plate-like member extends integrally from the inner end portion which is a horizontal extending end toward the front side of the connector.

  The elastic lock arm member 13e is formed of a cantilevered member extending in a horizontal state substantially parallel to a main printed wiring board (not shown), and an end portion of the elastic lock arm member 13e on the front side of the connector is formed. An engaging lock portion 13a and a lock release operation portion 13f are provided at the configured free end portion. The locking lock portion 13a and the unlocking operation portion 13f are integrally formed so that both side edge portions in the plate width direction (connector longitudinal direction) of the elastic lock arm member 13e are bent substantially vertically upward. And the locking lock portion 13a formed on the inner edge in the plate width direction and the unlocking operation portion 13f formed on the outer edge in the plate width direction face each other in the connector longitudinal direction. Has been made.

  Here, as described above, since the elastic lock arm member 13e is set so that the plate width direction is the connector longitudinal direction (horizontal direction) and the plate thickness direction is the vertical direction, It is made into the structure which elastically displaces to the up-down direction which is a plate | board thickness direction. Then, as the elastic lock arm member 13e is elastically displaced in the vertical direction, the above-described locking lock portion 13a and the lock release operation portion 13f are reciprocated in the vertical direction within the plane of FIG. Has been made.

  Among them, the locking lock portion 13a is formed of a hook-shaped member that protrudes upward from the distal end portion (left end edge portion in FIG. 10) of the elastic lock arm member 13e in a substantially trapezoidal shape. The above-described signal transmission medium (FPC or FFC or the like) F is configured to protrude from the lower side with respect to the medium insertion path into which the signal transmission medium F is inserted.

  The medium insertion path at that time is defined so as to extend from the medium insertion port 11a to the connector rear side by being surrounded by the inner wall surface of the insulating housing 11 as described above. The bottom plate of the insulating housing 11 having the medium placement surface 11b which is the lower surface is formed from a thin plate-like member, and a space portion is provided below the bottom plate of the thin insulating housing 11. Is formed. And the elastic lock arm member 13e mentioned above is arrange | positioned in the lower side space part of the baseplate of the insulating housing 11 so that it may extend substantially horizontally.

  Further, the bottom plate of the insulating housing 11 having the medium placement surface 11b is formed with a lock hole 11c penetrating in the vertical direction at a position corresponding to the above-described locking lock portion 13a. The lock hole 11c is formed in a shape and a size capable of accommodating the locking lock portion 13a in a loosely fitted state. As described above, the locking lock portion 13a is moved in accordance with the elastic displacement of the elastic lock arm member 13e. When the locking lock part 13a protrudes and sinks through the lock hole 11c when it moves up and down, the locking lock part 13a protrudes into the medium insertion path (see FIG. 10), or the locking lock part 13a locks from the medium insertion path. The portion 13a is retracted and accommodated in the lock hole 11c (see FIG. 11).

  In addition, an inclined guide side facing a signal transmission medium (FPC or FFC or the like) F inserted into the medium insertion passage is formed at the front end edge of the locking lock portion 13a. The insertion side tip edge of the signal transmission medium F inserted in this direction is in a positional relationship in contact with the inclined guide side of the locking lock portion 13a protruding into the medium insertion passage as shown in FIG. When the signal transmission medium F comes into contact with the inclined guide side of the locking lock portion 13a, the entire locking lock portion 13a is caused by the vertical component force generated on the inclined guiding side of the locking lock portion 13a. However, as shown in FIG. 11, the elastic lock arm member 13e is pushed down to the retracted position against the elastic force of the elastic lock arm member 13e.

  Further, when the signal transmission medium (FPC, FFC, etc.) F is inserted, the engagement positioning portion Fa provided on the signal transmission medium F reaches a position facing directly above the locking lock portion 13a. It will be. At this time, as shown in FIG. 12, the locking lock portion 13a is forcibly moved upward toward the inside of the engagement positioning portion Fa by the elastic restoring force of the elastic lock arm member 13e, thereby both members. Fa and 13a are engaged with each other (locked state). Then, the insertion state of the signal transmission medium F is held without being pulled out by the engaging force of the locking lock portion 13a in the engaged state.

  On the other hand, the unlocking operation portion 13f is formed of a plate-like member that protrudes upward from the distal end portion (left edge portion in FIG. 10) of the elastic lock arm member 13e described above, and is formed at the upper end portion thereof. The bent portion is disposed so as to protrude further upward from the upper surface of the insulating housing 11. Then, when the unlocking operation is performed by pushing down the unlocking operation portion 13f as shown in FIG. 13, the elastic lock arm member 13e is elastically displaced so as to bend downward. It is made the structure which moves so that 13a may be pushed down.

  Next, the lock member 13 is provided with a medium pressing piece 13g that presses the signal transmission medium (FPC, FFC, or the like) F toward the medium placement surface 11b of the insulating housing 11 described above. The medium pressing piece 13g is formed of an elastic flexible member that is cantilevered from the rear end edge portion (right end edge portion in FIG. 10) of the fixed substrate 13b and extends to the front side of the connector.

  More specifically, the board connecting portion 13d is provided on the rear end edge portion (right end edge portion in FIG. 10) of the fixed substrate 13b as described above. From a position adjacent to the side, a medium pressing piece 13g having a strip shape is provided so as to rise substantially vertically upward. The medium pressing piece 13g made of the band-like elastic flexible member rises up to a position above the medium insertion path into which the above-described signal transmission medium (FPC or FFC) F is inserted, and then the front side of the connector (FIG. 10 on the left side) and is bent at a substantially right angle, and extends from the upper bent portion so as to form a cantilever arm. And the free end part which is the extended end part of the cantilevered upper arm-shaped part 13g1 is configured to reciprocate up and down.

  The upper arm portion 13g1 of the medium pressing piece 13g having such a free end portion is disposed at a predetermined interval above the elastic lock arm member 13e described above, and both the members 13g1, 13e are disposed. The signal transmission medium (FPC or FFC or the like) F is inserted between them. Further, the upper arm-shaped portion 13g1 of the medium pressing piece 13g extends to a position slightly shifted to the connector inner side (connector center side) with respect to the elastic lock arm member 13e in plan view. It arrange | positions so that it may oppose from the upper side of the thickness direction of the signal transmission medium F with respect to the lock | rock part 13a. A medium contact protrusion 13g2 that protrudes downward from a free end portion (tip portion) of the medium pressing piece 13g is provided at an upper portion of the locking lock portion 13a.

  The medium contact protrusion 13g2 of the medium pressing piece 13g is located on the back side in the insertion direction of the signal transmission medium (FPC, FFC, etc.), that is, slightly behind the connector (right side in FIG. 10) from the locking lock portion 13a. In the region, a part of the upper arm-shaped portion 13g1 is formed to be bent at an obtuse angle, and is disposed so as to face the medium placement surface 11b of the insulating housing 11 from above. The lower apex portion of the medium contact protrusion 13g2 is in an abutting relationship from above with respect to the signal transmission medium F inserted into the medium insertion path, and the upper arm of the medium pressing piece 13g. The signal transmission medium F is pressed against the medium placement surface 11b of the insulating housing 11 by the downward elastic biasing force of the shape portion 13g1.

  According to this embodiment having such a configuration, the signal transmission medium (FPC or FFC or the like) F inserted into the insulating housing 11 and held by the engaging force of the locking lock portion 13a is used as the locking lock portion. The medium pressing piece 13g disposed opposite to the upper side of 13a is pressed toward the locking lock portion 13a by the elastic biasing force, thereby engaging the signal transmission medium F with the locking lock portion 13a. However, since the signal transmission medium is maintained in a good holding state regardless of the thickness variation of the signal transmission medium, the signal transmission medium F is reliably held by the lock member 13.

  In particular, in the present embodiment, the signal transmission medium (FPC or FFC or the like) F is brought into contact with the medium placement surface 11b of the insulating housing 11 by the pressing force of the medium pressing piece 13g. The signal transmission medium F is sandwiched between the medium pressing piece 13g and the medium placement surface 11b of the insulating housing 11, whereby the signal transmission medium F is more stably held.

  Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in each of the embodiments described above, a flexible printed circuit (FPC) and a flexible flat cable (FFC) are employed as a signal transmission medium fixed to the electrical connector. The present invention can be similarly applied to a case where a medium for use is used.

  Furthermore, although the same shape of conductive contacts is used in the electrical connector according to the above-described embodiment, the present invention can be similarly applied to a structure in which conductive contacts of different shapes are alternately arranged. It is.

  The present invention can be widely applied to a wide variety of electrical connectors used in various electrical devices.

DESCRIPTION OF SYMBOLS 10 Electrical connector 11 Insulation housing 11a Medium insertion port 11b Medium mounting surface 11c Lock hole 12 Conductive contact 12a Fixed base part 12a1 Substrate connection part 12b Movable beam 12b1 Terminal contact convex part 12c Movable beam 12c1 Terminal contact convex part 13 Lock member And unlock mechanism)
13a Locking lock portion 13b Fixed substrate 13c Fixed piece portion 13d Substrate connecting portion 13e Elastic lock arm member (lock urging member)
13f Unlocking operation part 13g Medium pressing piece 13g1 Upper arm-shaped part 13g2 Medium contact protrusion F Signal transmission medium (FPC or FFC, etc.)
Fa engagement positioning part

Claims (3)

A locking member having a locking portion for engaging with a signal transmission medium inserted into an insulating housing extending in the connector longitudinal direction and holding the signal transmission medium in an inserted state;
In the electrical connector configured to engage with the signal transmission medium by elastically returning after the locking lock portion is elastically displaced in contact with the signal transmission medium,
The lock member is formed of an integrally folded structure made of a thin plate-like metal member, and the lock member includes a fixed substrate fixed to the insulating housing and one end edge portion of the fixed substrate. A board connecting part extending integrally from the medium, and a medium pressing piece made of a cantilevered elastic flexible member that presses the signal transmission medium toward the locking lock part,
The elastic flexible member constituting the medium pressing piece has a plate width in the connector longitudinal direction and extends in an arm shape,
A portion of the medium pressing piece that presses the signal transmission medium is disposed so as to face the locking lock portion in the thickness direction of the signal transmission medium , and
The medium pressing piece is configured to rise substantially upward at a right angle from a position adjacent in the connector longitudinal direction with respect to the board connecting portion provided at one end edge portion of the fixed board. . The insulating housing is formed with a medium mounting surface that supports the signal transmission medium inserted into the insulating housing,
The latching lock portion is configured to move so as to protrude and retract with respect to the medium placement surface of the insulating housing,
The electrical connector according to claim 1, wherein the medium pressing piece is disposed so as to face a medium mounting surface of the insulating housing in a thickness direction of the signal transmission medium.   The part where the medium pressing piece presses the signal transmission medium is disposed so as to face the medium mounting surface of the insulating housing in a region deeper than the locking lock part in the insertion direction of the signal transmission medium. The electrical connector according to claim 1, wherein:

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