JP2013134870A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve, in a simple configuration, ground connection between a printed circuit board B and a product casing or other board easily at low cost, and also improvement of an anti-fall-off function of a lock member.SOLUTION: An electric connector 10 comprises a lock member 14 for preventing falling off of a signal transmission medium F inserted into an insulation housing 11. The lock member 14 is provided with a ground connection piece 14e formed integrally therewith and abuttable with a ground wiring part of a product casing or other board C. When the printed circuit board B is assembled with the product casing or other board C, the lock member 14 is moved in a direction for preventing falling off of the signal transmission medium F through the ground connection piece 14e of the lock member 14. In this manner, ground connection between the printed circuit board B and the product casing or other board C can be achieved without providing a conventional separate ground connection member therebetween. This also achieves the ground connection between the boards B and C easily at low cost and further, improves a locking function of the lock member 14 to lock the signal transmission medium F.

Description

  The present invention relates to an electrical connector configured to be disposed between a printed wiring board and a product housing or another board disposed opposite thereto.

  In general, printed circuit boards used in various electrical devices and the like use various signal transmission media such as a flexible printed circuit (FPC) and a flexible flat cable (FFC) for the printed circuit board. In many cases, an electrical connector for connection is installed and used. For example, in the electrical connector described in Patent Document 1 below, a signal transmission medium made of FPC, FFC, or the like is directed inward from a medium insertion port on the front end side of the electrical connector mounted on a printed wiring board. After that, the actuator as a medium fixing operation means is rotated so as to be tilted toward the closing position, whereby the conductive contact is elastically displaced and is pressed against the signal transmission medium to make electrical connection. It has come to be.

  On the other hand, a wiring pattern constituting an electronic circuit is formed on a product casing made up of the above-described printed wiring board, a cover of an electrical device, and the like. When assembling so as to connect the body, a ground circuit may be configured via a ground connection member 2 attached to the printed wiring board 1 as shown in FIG. The contact portion 2a provided on the ground connection member 2 is formed on a product casing or other printed wiring board (hereinafter referred to as “product casing or the like”) 3 as shown in FIG. The ground wiring portion is arranged so as to come into contact.

  Thus, in the prior art, the ground connection member 2 is interposed between the printed wiring board 1 and the product casing 3 or the like disposed opposite to the printed wiring board 1, thereby the printed wiring board 1 and the product casing. Etc. 3 is connected to the ground, but the ground connection member 2 used therein must be manufactured and prepared separately from the product housing 3 and the electrical connector. This leads to an increase in the number of parts, which is not preferable from the viewpoint of improving productivity. Further, when the assembly is performed so that the product housing 3 is connected to the printed wiring board 1, the ground connection member 2 generated when the ground connection member 2 is interposed between the members 1 and 3. Due to the elastic repulsive force, the product housing 3 is lifted away from the printed wiring board 2 and the assembly efficiency may be reduced.

JP 2008-277068 A

  Therefore, the present invention enables a ground connection between a printed wiring board and a product housing or another board to be inexpensively and easily performed with a simple configuration, and to improve a lock member retaining function. An object of the present invention is to provide an electrical connector.

  In order to achieve the above object, in the present invention, the printed circuit board is mounted and used on a printed wiring board arranged in a product casing, and the product casing or the other arranged opposite to the printed wiring board. An electrical connector provided with a lock member that is disposed between a substrate and that prevents a signal transmission medium inserted in an insulating housing from being removed. A ground contact piece having a contact portion capable of coming into contact with the ground wiring portion formed on the substrate is integrally formed, and the ground contact piece is in contact with and pressed against the product housing or another substrate. Thus, the lock member is moved in the direction of retaining the signal transmission medium.

  According to the present invention having such a configuration, when the product casing or other board is assembled to the printed wiring board, the product casing or other board is provided via the ground contact piece of the lock member provided in the electrical connector. Since the circuit board is grounded to the printed wiring board and a separate ground connection member is not required, the ground connection between the product housing and other printed wiring boards and the printed wiring board is inexpensive and easy. In addition, when the product housing or another printed wiring board is assembled to the printed wiring board, the lock member is moved in the direction of retaining the signal transmission medium. The locking action of the transmission medium is enhanced.

  Moreover, it is preferable that the ground contact piece of the lock member in the present invention is provided so as to protrude from the insulating housing toward the product casing or another substrate.

  According to the present invention having such a configuration, the product housing and other substrates are reliably brought into contact with the ground contact piece of the lock member provided in the electrical connector.

  In the present invention, it is desirable that the lock member is moved to a position where the signal transmission medium is prevented by an operation of an actuator movably provided in the insulating housing.

  According to the present invention having such a configuration, after the operation of the actuator, the lock member is further moved in the direction of retaining the signal transmission medium, so that the locking action of the signal transmission medium by the lock member is further increased. , Enhanced.

  As described above, the electrical connector according to the present invention has a ground contact that can be brought into contact with the ground wiring portion of the product housing or another board on the lock member that prevents the signal transmission medium inserted into the insulating housing. When the piece is integrally formed and the product housing or other board is assembled to the printed wiring board, it is locked in the direction of retaining the signal transmission medium via the ground contact piece of the lock member provided in the electrical connector. By moving the member and grounding the product housing or other board to the printed wiring board without interposing a separate ground connection member as in the past, the ground connection between the two members can be made inexpensively and easily and locked. Since it is configured to enhance the locking action of the signal transmission medium by the member, the ground connection between the printed wiring board and the product housing or another board can be made inexpensively and easily with a simple configuration. It has done so, and since it is possible to improve the retaining function of the locking member, the reliability of the electrical connector can be inexpensively and substantially improved.

In the electrical connector according to the first embodiment of the present invention, it is an external perspective view illustrating the state immediately before the signal transmission medium (FPC) is inserted by raising the actuator to the release position. FIG. 2 is an external perspective explanatory view showing a state where a signal transmission medium is inserted from the state of FIG. 1 and an actuator is pushed down to a holding position from the front side. FIG. 2 is a cross-sectional explanatory diagram of a position in the vicinity of a lock member in the electrical connector illustrated in FIG. 1. FIG. 4 is an explanatory cross-sectional view corresponding to FIG. 3 in a state where a signal transmission medium is inserted from the state shown in FIG. 3 and the actuator is pushed down to a clamping position. FIG. 5 is a cross-sectional explanatory view corresponding to FIG. 3 in a state where a product housing or another printed wiring board is assembled from the state shown in FIG. 4. FIG. 2 is a cross-sectional explanatory view of the vicinity of a conductive contact in the electrical connector shown in FIG. 1. In the electrical connector concerning the 2nd Embodiment of this invention, it is an external appearance perspective explanatory view which represented the state just before starting an actuator to a cancellation | release position and trying to insert a signal transmission medium (FPC) from the front side. FIG. 8 is an external perspective explanatory view showing a state where a signal transmission medium is inserted from the state of FIG. 7 and the actuator is pushed down to a holding position from the front side. FIG. 8 is a cross-sectional explanatory diagram of a position in the vicinity of the lock member in the electrical connector illustrated in FIG. 7. FIG. 10 is a cross-sectional explanatory view corresponding to FIG. 9 in a state where a signal transmission medium is inserted from the state shown in FIG. 9 and the actuator is pushed down to a holding position. FIG. 11 is a cross-sectional explanatory view corresponding to FIG. 9 in a state where a product housing or another printed wiring board is assembled from the state shown in FIG. 10. FIG. 10 is a cross-sectional explanatory diagram of a position in the vicinity of the conductive contact in the electrical connector illustrated in FIG. 9. FIG. 3 is an external perspective view illustrating an example of a ground connection member that is generally used for assembling so as to connect printed wiring boards or a printed wiring board and a product housing. It is an external appearance perspective explanatory view which represented the state assembled | attached so that a product housing | casing and another printed wiring board might be contacted with respect to the ground connection member represented by FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. An electrical connector according to the present invention is mounted on a printed wiring board disposed in a product housing and used for printing. It is arranged between the wiring board and a product housing or another board arranged opposite to the printed wiring board.

[About overall connector structure]
First, the electrical connector 10 according to the first embodiment shown in FIGS. 1 to 6 includes an insulating housing (insulator) 11 made of an insulating member extending in an elongated shape. The insulating housing 11 is formed of a thin and thin casing having an elongated shape, and a flexible printed circuit (FPC) is provided on one side (left end side in FIG. 6) of opposite end portions of the longitudinal side. ) Or a flexible flat cable (FFC) or the like, a medium insertion slot 11a into which a signal transmission medium F is inserted is provided so as to have a horizontally elongated opening shape. Further, the other end side (the right end side in FIG. 6) opposite to the medium insertion port 11a is provided with a component attachment port 11b for mounting a conductive contact 12, which will be described later, and an actuator 13 as a medium fixing operation means. It has been.

  Hereinafter, a direction corresponding to the longitudinal direction of the insulating housing 11 is referred to as a “connector longitudinal direction”, and directions on the side where the medium insertion port 11a and the component attachment port 11b are provided are “connector front” and “connector rear”. I will call it.

[About conductive contacts]
A plurality of conductive contacts 12 made of a thin plate-like metal member having a side shape in which the substantially H-shape is turned sideways are inserted into the insulating housing 11 described above. The conductive contacts 12 are arranged in multiple poles at appropriate intervals along the lateral width direction (connector longitudinal direction) of the insulating housing 11, and the same shape is arranged in parallel or has different shapes Are arranged alternately. Each of these conductive contacts 12 is used for either signal transmission or shielding. As will be described later, one end portion (right end portion or left end portion in FIG. 6) of each conductive contact 12 is printed wiring board B. It is designed to be used on top.

  Each of the conductive contacts 12 is mounted so as to be pushed from the component mounting port 11b provided on the connector rear end side toward the connector front side (left side in FIG. 6) as described above. Each of the conductive contacts 12 at a position corresponding to either a signal transmission conductive path (signal line) or a shield conductive path (shield line) formed on the front or back surface of a signal transmission medium (FPC, FFC, etc.) F Is arranged. Each of these conductive contacts 12 has a movable contact beam 12a and a fixed contact beam 12b each made of a pair of elongated beam members extending along the insertion / extraction direction of the signal transmission medium F (left-right direction in FIG. 6). Yes.

  The movable contact beam 12a and the fixed contact beam 12b are disposed in the inner space of the above-described insulating housing 11 so as to face each other at an appropriate interval in the vertical direction in the figure, and in the connector front-rear direction (left and right in FIG. 6). Direction). Among them, the fixed contact beam 12b is arranged so as to extend along the inner wall surface of the bottom portion of the insulating housing 11, and is fixed so as to be substantially immobile inside the insulating housing 11.

  The fixed contact beam 12b is integrally formed with a connecting post portion 12c in the form of a narrow plate extending in a substantially vertical direction (vertical direction in FIG. 6) at a substantially central portion in the connector longitudinal direction (left and right direction in FIG. 6). Connected. And the movable contact beam 12a mentioned above is integrally connected with the upper end part of the connection support | pillar part 12c so that it may extend in the connector front-back direction (left-right direction of FIG. 6). The movable contact beam 12a is elastically deformed so as to rotate around the connecting column portion 12c or the vicinity thereof, and thereby the movable contact beam 12a is elastically flexible with respect to the fixed contact beam 12b. Has been made. These movable contact beams 12a are elastically deformed so as to rotate within a plane including the paper surface of FIG. 6, and both end portions in the extending direction of the movable contact beams 12a are elastically displaced in the vertical direction in the drawing. It has been made into a configuration.

  Further, a signal transmission or shielding conductive path (on the upper surface side of the signal transmission medium (FPC, FFC, etc.) F) is formed on the front end portion (left end portion in FIG. 6) of the movable contact beam 12a described above. A terminal contact convex portion 12a1 is provided as a contact portion connected to any one of (not shown) so as to form a downward protruding shape in the drawing. The signal transmission medium F is sandwiched between the terminal contact convex portion 12a1 provided on the movable contact beam 12a and the fixed contact beams 12b arranged so as to face the position immediately below the terminal contact convex portion 12a1. ing.

  At this time, corresponding to the terminal contact protrusion 12a1 of the movable contact beam 12a, the signal transmission medium or the shield is formed on the lower surface side of the signal transmission medium (FPC, FFC, etc.) F also on the fixed contact beam 12b side. It is also possible to provide a terminal contact convex portion connected to any one of the conductive paths (not shown) so as to form an upward protruding shape in the figure. Also, these terminal contact convex portions can be arranged so that their positions are shifted to the front side of the connector (left side in the figure) or the rear side of the connector (right side in the figure). Further, the fixed contact beam 12b in the present embodiment is basically fixed so as to be stationary, but for the purpose of facilitating insertion of a signal transmission medium (FPC or FFC) F, for example, The front end portion of the fixed contact beam 12b may be formed so as to be slightly lifted from the bottom wall surface of the insulating housing 11 so as to be elastically displaceable.

  A board connection terminal portion soldered to a conductive path (not shown) formed on the printed wiring board B described above is provided on the connector rear end side portion (right end side portion in FIG. 6) of the fixed contact beam 12b. 12b1 is formed, and electrical connection to the printed wiring board B is performed via the board connection terminal portion 12b1.

  Further, the fixed contact beam 12b is provided with a cam receiving portion 12b2 formed so as to be recessed in a substantially arc shape on the lower side in a side view in the upper portion of the substrate connection terminal portion 12b1 described above. A pressing cam portion 13a of the actuator 13 mounted on the rear end portion of the insulating housing 11 is disposed in a substantially arc-shaped depression portion of the receiving portion 12b2 so as to be slidably contacted from the upper side in the figure. Further, the connector rear end portion of the movable contact beam 12a is in contact with the upper side of the pressing cam portion 13a of the actuator 13 in a pressure contact state.

[About the actuator]
The actuator 13 described above is rotatably attached to an edge portion (right end portion in FIG. 6) on the rear side of the connector of the insulating housing 11, and the actuator 13 is in an initial state (non-operating state) in a standing state. The conductive contact 12 is electrically connected to the signal transmission medium (FPC, FFC, etc.) F by being rotated so as to be pushed down from the connector rear side (right side in FIG. 6). It is comprised so that.

  More specifically, the actuator 13 serving as the medium fixing operation means is entirely formed of a substantially plate-like member, and is connected to the connector rear end portion (right end portion in FIG. 6) of the insulating housing 11 in the connector longitudinal direction. Is provided with a rotation operation portion 13b extending in an elongated shape along the line. Then, when the assembly operator applies an appropriate rotation operation force to the rotation operation portion 13b of the actuator 13, the entire actuator 13 is rotated around the rotation axis. 1, 3, 5, and 6, the “release position” is set up upward, and the connector is tilted substantially horizontally toward the connector rear side as shown in FIGS. 2, 4, and 5. It is configured to be rotated between the “clamping position” in the state of being made.

  The pressing cam portion 13a provided at the rotation center portion of the actuator (connection operating means) 13 is formed to have a substantially elliptical cross section, and positions corresponding to both ends of the major axis in the elliptical shape. A predetermined cam surface is formed. As described above, when the actuator 13 performs a turning operation of pushing down from the “release position” (see FIG. 1) toward the “clamping position” (see FIG. 2) toward the rear side of the connector, the pressing cam portion 13a. The radius of rotation of the movable contact beam 12b changes in a direction increasing between the fixed contact beam 12b and the movable contact beam 12a. The operating portion 12a2 is displaced so as to be lifted upward in the drawing, and accordingly, the terminal contact convex portion 12a1 provided on the connector front end side is pushed downward.

  First, in the initial state (non-operating state) where the actuator 13 is in the “release position”, the signal transmission medium (FPC or FFC or the like) F faces the front portion of the insulating housing 11 as shown in FIG. After the signal transmission medium F is inserted into the inside of the insulating housing 11, the actuator 13 is rotated so as to tilt toward the rear side of the connector as shown in FIG. . Thus, when the actuator 13 has been rotated to just before the “holding position” that is the final rotation position, the rotation radius of the pressing cam portion 13a described above becomes the maximum, and only a minute angle from the maximum radius position. The terminal contact convex portion of the movable contact beam 12a described above with respect to the signal transmission and ground conductive paths (not shown) formed on the surface of the signal transmission medium F at the “clamping position” that is the rotated position. 12a1 is pressure-contacted, and electrical connection is made thereby.

[About locking members]
On the other hand, the signal transmission medium (FPC or FFC or the like) F inserted into the insulating housing 11 is prevented from being removed at both ends of the insulating housing 11 in the longitudinal direction of the connector, that is, the outer portions on both sides of the conductive contact 12 described above. A pair of lock members 14 and 14 for performing the above are mounted so as to be pushed from the front end side of the connector toward the rear side (right side in FIG. 3). Each of these lock members 14 also has a movable lock beam 14a and a fixed lock beam 14b made of a pair of elongated beam members extending along the insertion direction of the signal transmission medium F (right direction in FIG. 6). Yes.

  The movable lock beam 14a and the fixed lock beam 14b constituting the lock member 14 are arranged in the inner space of the insulating housing 11 so as to face each other at an appropriate interval in the vertical direction in the figure, and in the longitudinal direction of the connector. It arrange | positions so that it may extend in the (left-right direction of FIG. 3). Among them, the fixed lock beam 14 b is disposed so as to extend along the inner wall surface of the bottom of the insulating housing 11, and is fixed so as to be substantially immobile within the insulating housing 11.

  As will be described later, the lock member 14 in the present embodiment is also configured to serve as a ground connection member, and the printed wiring described above is provided on the connector front end side portion (left end side portion in FIG. 3) of the fixed lock beam 14b. A board connection terminal portion 14b1 that is solder-connected to a ground conductive path (not shown) formed on the board B is formed, and the ground connection to the printed wiring board B is performed via the board connection terminal portion 14b1. It has become.

  Such a fixed lock beam 14b includes a narrow plate-like connecting column 14c extending in a substantially vertical direction (vertical direction in FIG. 3) at a substantially central portion in the connector longitudinal direction (left and right direction in FIG. 3). Are connected together. The above-mentioned movable lock beam 14a is integrally connected to the upper end portion of the connection post portion 14c. From the connection portion with the connection post portion 14c to the connector front side (left side in FIG. 3). On the other hand, the movable lock beam 14a is cantilevered and extends substantially horizontally.

  Accordingly, the movable lock beam 14a is configured to be elastically deformed so as to rotate about the upper end portion of the connecting support column portion 14c or the vicinity thereof, and the movable lock beam 14a is in contrast to the above-described fixed lock beam 14b. It has elastic flexibility. The rotation of the movable lock beam 14a is performed in a plane including the paper surface of FIG. 3, and the distal end portion (left end portion of FIG. 3) in the extending direction of the movable lock beam 14a is elastically displaced in the vertical direction in the drawing. It is made the composition which becomes.

  On the other hand, at the rear end portion of the connector of the fixed lock beam 14b (the right end portion in FIG. 3), a cam receiving portion 14b2 that slidably receives the pressing cam portion 13a of the actuator 13 described above is substantially circular on the lower side in a side view. The press cam portion 13a of the actuator 13 described above is slidably abutted from the upper side of the figure in a substantially arc-shaped recess portion of the cam receiving portion 14b2. Since the actuator 13 and the pressing cam portion 13a are the same as those described above, description thereof is omitted, but the operation of the actuator 13 and the operation of the lock member 14 are performed independently of each other.

  Further, a locking lock portion 14d that engages with a signal transmission medium (FPC, FFC, or the like) F is provided at the connector front end portion (left end side portion in FIG. 3) of the movable lock beam 14a described above. Corresponding to the locking portion 14d provided on the lock member 14 side, the terminal portion of the signal transmission medium F has a width direction (connector) of the signal transmission medium F as shown in FIG. Longitudinal direction) Engagement positioning portions Fa, Fa composed of notch-shaped concave portions are formed at the edge portions on both sides. The locking lock portions 14d and 14d described above are provided on the electrical connector 10 side corresponding to the engagement positioning portions Fa and Fa provided on the signal transmission medium F, and the locking lock portions 14d, The insertion state of the signal transmission medium F is maintained by the locking action (lock action) of 14d.

  The locking lock portion 14d provided in each lock member 14 described above is formed of a hook-shaped member having a substantially triangular side surface, and is rearward from the front end portion (left end portion in FIG. 3) of the locking lock portion 14d. There is provided an inclined guide side 14d1 extending obliquely downward (to the right in FIG. 3). The inclined guide side 14d1 has a guide function when a signal transmission medium (FPC or FFC or the like) F is inserted into the electrical connector 10.

  That is, when the terminal end edge of the signal transmission medium F comes into contact with the locking lock portion 14d as the signal transmission medium (FPC or FFC or the like) F is inserted, the locking action is caused by the guide action of the inclined guide side 14d1 described above. The lock portion 14d rides on the surface of the signal transmission medium F so as to be lifted upward against the elastic force of the movable lock beam 14a. Further, the signal transmission medium F is pushed toward the back of the connector (right side in FIG. 3), and the engagement positioning portion Fa provided on the signal transmission medium F is engaged as shown in FIG. When placed at a position directly below the locking portion 14d, the locking portion 14d moves downward so as to drop toward the inside of the engagement positioning portion Fa of the signal transmission medium F by the elastic restoring force of the movable locking beam 14a. .

  At this time, the locking lock portion 14d is not fully depressed with respect to the engagement positioning portion Fa provided in the signal transmission medium (FPC or FFC) F, but is in a semi-engaged state, as will be described later. A position in which the engagement lock portion 14d is further lowered and the engagement positioning portion Fa is sufficiently engaged (locked) by assembling the product housing or another substrate to the printed wiring board B. In other words, the locking portion 14d is moved to the position where the signal transmission medium F is prevented from being removed.

  Specifically, the movable contact beam 14a provided with the lock member 14 described above is integrally provided with a ground contact piece 14e at a position corresponding to the upper position of the locking lock portion 14d. Yes. The ground contact piece 14e is formed so as to protrude in a substantially mountain shape upward from the front end portion (left end portion in FIG. 3) of the movable lock beam 14a. The ground contact piece 14e is formed on the upper surface of the insulating housing 11 in a single unit (see FIGS. 3 and 4) of the electrical connector 10 in an unassembled state in which a product casing or other board to be described later is not assembled. The mountain-shaped top portion of the ground contact piece 14e protrudes upward and is exposed to the outside. A ground contact portion 14e1 is formed on the top of the ground contact piece 14e, and the ground contact portion 14e1 can contact a ground wiring portion formed on a product housing or other substrate described later. It is made the composition which becomes.

  That is, as described above, the electrical connector 10 according to the present embodiment is used by being mounted on the printed wiring board B. The printed wiring board B is shown in FIG. As described above, a product casing or another substrate (hereinafter referred to as a product casing or the like) C is assembled so as to be opposed to the printed wiring board B, and the printed wiring board B and the product casing are assembled. The electrical connector 10 according to the present embodiment is arranged between the body C and the like. As described above, the product casing C is disposed so as to be opposed to the upper position of the electrical connector 10 mounted on the printed wiring board B, and then assembled so as to be pressed downward.

  When assembly is started such that the product casing C is pressed toward the lower electrical connector 10 in this way, a ground wiring portion (not shown) provided in the product casing C is The above-described ground contact piece 14e is in contact with the ground contact portion 14e1 from above. When the product housing C is pushed downward while in contact with the ground contact piece 14e, the locking lock portion 14d described above is lowered against the elasticity of the movable lock beam 14a. It will be followed. Then, as shown in FIG. 5, when the product housing C is completely pushed down and the final assembly is completed, the engagement provided on the signal transmission medium (FPC or FFC, etc.) F The locking lock portion 14d moves downward to a position where the locking lock portion 14d is completely immersed in the positioning portion Fa and is in an engaged state, that is, a position where the signal transmission medium F is prevented from being removed. .

  According to the present embodiment having such a configuration, when the product casing or the like C made of a product casing or another board is assembled to the printed wiring board B, the lock member 14 included in the electrical connector 10 is provided. The ground wiring portion of the product housing C or the like is grounded to the printed wiring board B via the ground contact piece 14e, so that a separate ground connecting member as in the related art becomes unnecessary. Therefore, the ground connection between the product housing C and the printed wiring board B is easily performed at low cost. In addition, when the product casing C is assembled to the printed wiring board B, the lock member 14 is moved in the direction in which the signal transmission medium (FPC, FFC, etc.) F is retained. The locking action of the signal transmission medium F by the member 14 is enhanced.

  In particular, in the present embodiment, the ground contact piece 14e of the lock member 14 is provided so as to protrude from the insulating housing 11 toward the product housing C or the like made of a product housing or another substrate. The product housing C and the like are surely brought into contact with the ground contact portion 14e1 provided on the ground contact piece 14e.

  On the other hand, in the second embodiment shown in FIG. 7 to FIG. 12 in which the same reference numerals are given to the same constituent members as those in the first embodiment described above, the movable lock beam 14a is connected to the connecting strut portion 14c. It is made into the shape extended toward a connector rear side. A cam receiving portion 14a1 is formed on the rear end portion of the movable lock beam 14a (the right end portion in FIG. 11) so as to project downward in a substantially semicircular shape in a side view. The lower edge portion of the cam receiving portion 14a1 is formed so as to be recessed in a substantially arc shape toward the upper side, and is provided at a recessed portion formed by the cam receiving portion 14a1 and a rear end portion of the fixed lock beam 14b. The pressing cam portion 13a of the actuator 13 described above is disposed so as to be rotatable between the recessed portion of the cam receiving portion 14b2.

  Since the actuator 13 and the pressing cam portion 13a are the same as those described above, description thereof is omitted, but the actuator 13 moves from the “release position” (see FIG. 9) toward the “clamping position” (see FIG. 10). When a turning operation of pushing down to the connector rear side is performed, the rotation radius of the pressing cam portion 13a changes in an increasing direction between the fixed lock beam 14b and the movable lock beam 14a, and the diameter of the pressing cam portion 13a. According to the change, the cam receiving portion 14a1 provided on the connector rear end side of the movable lock beam 14a is displaced so as to be lifted upward in the drawing, and accordingly, the locking lock portion 14d provided on the connector front end side is lowered. When pressed down, the locking lock portion 14d moves downward so as to drop toward the inside of the engagement positioning portion Fa of the signal transmission medium F.

  The locking portion 14d at this time is not completely engaged with the engagement positioning portion Fa provided on the signal transmission medium (FPC, FFC, etc.) F, but is printed as described later. When the product housing or the product housing C made of another substrate is assembled to the wiring board B, the locking lock portion 14d is further lowered, and the engagement positioning portion Fa is sufficiently engaged. The locking portion 14d is shifted to a position where it is in the (locked state), that is, a position where the signal transmission medium F is to be removed.

  Specifically, the movable lock beam 14a provided with the above-described lock member 14 is integrally provided with a ground contact piece 14f at a position corresponding to the position above the locking lock portion 14d. Yes. The ground contact piece 14f extends from the middle position on the front side (left side in FIG. 3) of the movable lock beam 14a so as to branch in a bifurcated manner obliquely upward. Further, it is configured to protrude in an approximately mountain shape outward from the upper side. The ground contact piece 14f is a single piece of the electrical connector 10 in an unassembled state (see FIGS. 9 and 10) in which a product housing or other board to be described later is not assembled (see FIGS. 9 and 10). The mountain-shaped top portion protrudes upward from the upper surface of the insulating housing 11 and is exposed outwardly from the above-described embodiment. A ground contact portion 14f1 is formed on the top of the ground contact piece 14f, and the ground contact portion 14f1 can be in contact with a ground wiring portion formed on a product housing or another substrate described later. It is made the composition which becomes.

  Then, the product housing or the product housing C made of another substrate is assembled so as to be opposed to the upper side of the printed wiring board B, and the product housing etc. C is attached to the lower electrical connector 10. When the assembly is started so as to be pressed toward the front, the ground wiring portion (not shown) provided in the product casing C or the like is from above the ground contact portion 14f1 of the ground contact piece 14f described above. It is made the structure which contact | abuts. When the product housing C is pushed downward while in contact with the ground contact piece 14f, the locking lock portion 14d described above also descends against the elasticity of the movable lock beam 14a. It will be followed. As shown in FIG. 11, when the product housing or the like C is completely pushed down and the final assembly is completed, the engagement positioning portion provided in the signal transmission medium (FPC or FFC or the like) F The locking lock portion 14d moves downward to a position where the locking lock portion 14d is completely immersed in Fa and is in an engaged state, that is, a position where the signal transmission medium F is prevented from being removed.

  The actuator 13 is rotated from the “release position” to the “clamping position” so that the locking lock portion 14 d is completely engaged with the engagement positioning portion Fa of the signal transmission medium F. You may make it be made to. In this case, the signal transmission medium F is prevented from being pulled out by rotating the actuator 13, but the engagement state of the locking lock portion 14d is further ensured by assembling the product housing C or the like. Therefore, the signal transmission medium F can be more securely prevented from being removed by the lock member.

  According to the present embodiment having such a configuration, the product housing or the like C is assembled after the actuator 13 is rotated, so that the lock member 14 is the signal transmission medium (FPC or FFC or the like) F. It is further moved in the direction of retaining, and the locking action of the signal transmission medium F by the lock member 14 is further enhanced.

  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.

  In addition, the actuator according to the above-described embodiment is disposed at the rear end portion of the insulating housing. However, the electrical connector in which the actuator is disposed at the front end side portion or between the front end side portion and the rear end side portion is provided. The present invention can be similarly applied to an electrical connector in which an actuator is disposed in a portion. Further, in the above-described embodiment, the present invention is applied to an electrical connector including an actuator that can rotate as a medium fixing operation means. However, the present invention includes an actuator that reciprocates in a slide shape, for example. The present invention can be similarly applied to other electrical connectors.

  Moreover, although the electrical connector according to the above-described embodiment uses conductive contacts having the same shape, the present invention can be similarly applied even if conductive contacts having different shapes are used. .

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

10 Electrical connector 11 Insulation housing (insulator)
11a Medium insertion port 11b Component mounting port 12 Conductive contact 12a Movable contact beam 12a1 Terminal contact convex part (contact part)
12b Fixed contact beam 12b1 Board connection terminal portion 12b2 Cam receiving portion 12c Connecting strut portion 13 Actuator (medium fixing operation means)
13a Pressing cam part 13b Rotating operation part 14 Locking member 14a Movable lock beam 14b Fixed lock beam 14c Connection strut part 14d Locking lock part 14d1 Inclination guide side 14e Ground contact piece 14e1 Ground contact part 14a1 Cam receiving part 14b2 Cam receiving part 14f Ground contact piece 14f1 Ground contact portion F Signal transmission medium (FPC or FFC, etc.)
Fa engagement positioning part B Printed wiring board C Product case (product case or other substrate)

Claims (3)

It is used by being mounted on a printed wiring board arranged in a product casing, and is arranged between the printed wiring board and the product casing or another board arranged opposite to the printed wiring board. There,
In an electrical connector provided with a lock member for retaining a signal transmission medium inserted in an insulating housing,
The lock member is integrally formed with a ground contact piece having a contact portion capable of contacting a ground wiring portion formed on the product casing or other substrate,
The ground contact piece is configured to be moved in a direction in which the signal transmission medium is retained when the ground contact piece is pressed against the product housing or another substrate. And electrical connector.   The electrical connector according to claim 1, wherein the ground contact piece of the lock member is provided so as to protrude from the insulating housing toward the product housing or another substrate.   2. The structure according to claim 1, wherein the lock member is configured to be moved in a direction in which the signal transmission medium is retained by an operation of an actuator movably provided in the insulating housing. Electrical connector.

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