JP2011065935A - Electrical connector for flat conductor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical connector for a flat conductor to regulate movement of the flat conductor in both upward and backward directions and to superbly prevent falling-off of the flat conductor. <P>SOLUTION: A connector 1 has a locking part 43B installed at a locking metal fitting 40 held by a housing 10 to protrude upward at a position corresponding to both end parts in the width direction of the front end part F1 of the flat conductor F, and a regulating fitting 50 held by the housing 10 at a more outward position than that of the locking part 43B in the width direction. The locking part 43B advances from downward into a notch recess part F4 formed in both side edges in a transition part from the front end part F1 to the body part F2 of the flat conductor F and is positioned to be locked to the front edge of the notch recess part F4 in order to inhibit backward falling-off of the flat conductor F. The regulating fitting 50 has a regulating arm part 53 which is backward extended above the flat conductor F, is locked to the upper face of the front end region of both end parts in the width direction of the body part F2 of the flat conductor F, and regulates upward movement of the body F2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electrical connector to which a flat conductor is connected.

  When such an electrical connector is mounted in an electronic device, a flat conductor connected to the electrical connector may be bent and wired in accordance with the position of the electronic component for connection to another electronic component. Many. By bending the flat conductor, an external force in the direction of pulling out of the connector may act on the flat conductor. In that case, a configuration for preventing the flat conductor from being pulled out in the electrical connector is provided. It is necessary to provide it.

  As an electrical connector having such a configuration for preventing the flat conductor from coming off, for example, an electrical connector described in Patent Document 1 is known. The flat conductor electrical connector disclosed in Patent Document 1 is an electrical connector that is connected to an FPC (flat conductor) that has a front end portion narrower than a main body portion that extends rearward from the front end portion.

  The electrical connector includes a housing in which a space for receiving a front end portion of the FPC is formed, a plurality of terminals arranged and held in the housing so that a contact portion protrudes into the space, and an FPC inserted in the space And a rotatable actuator (movable member) for maintaining the connection state with the corresponding portion of the front end portion.

  The housing of the electrical connector has restriction plates for restricting the upward movement of the FPC at both ends in the width direction. The restriction plate is formed with a notch that opens rearward. In a state where the FPC is connected to the connector, the front shoulder portion which is the front end side portion of both ends of the main body portion of the FPC enters the cutout portion of the restriction plate. In the electrical connector of Patent Document 1 having such a configuration, even if an upward external force acts on the FPC in a state where the FPC is connected, the upward movement of the FPC is restricted by the upper edge of the notch portion. That is, according to the electrical connector, the FPC does not come into contact with the lower surface of the actuator and the actuator is not brought to the open position, and the FPC is prevented from coming off from the connector.

JP2007-194017

  As described above, the electrical connector of Patent Document 1 can regulate the upward movement of the FPC, but does not have a portion that regulates the backward movement, so that an external force is applied to the FPC backward. When acted, the FPC may be disconnected from the electrical connector.

  In view of such circumstances, the present invention provides an electrical connector for a flat conductor that restricts the movement of the flat conductor in both the upper and rear directions and prevents the flat conductor from coming off well. With the goal.

  An electrical connector for a flat conductor according to the present invention is an electrical connector in which a flat conductor formed with a narrow width with respect to a main body portion whose front end portion extends rearward from the front end portion is connected to the flat conductor. And a plurality of terminals having contact portions that are arranged and held in the housing in the width direction and are connected to the corresponding portions of the flat conductors in the receiving space. And a movable member movable between an open position that allows insertion of the flat conductor into the receiving space and a closed position that increases the contact pressure of the corresponding portion of the flat conductor with respect to the contact portion of the terminal; It has.

  In such an electrical connector for a flat conductor, in the present invention, the flat conductor is provided on the housing or a member held by the housing so as to protrude upward at positions corresponding to both ends in the width direction of the front end portion. A locking part, and a restriction fitting that is arranged in parallel with the locking part in the width direction and is held by the housing, wherein the locking part is a transition part from the front end part of the flat conductor to the main body part In order to prevent the flat conductor from coming out from below into the notch recesses formed on both side edges, the front end of the notch recess can be locked, and the restriction metal fitting is It has a restricting arm portion that extends rearward above the die conductor and engages with the upper surface of the front end region at both ends in the width direction of the main portion of the flat conductor to restrict the upward movement of the main portion. It is characterized by that.

  In the present invention, when the backward external force acts on the flat conductor, the locking portion is locked with the front edge of the notch recess, and the backward movement of the flat conductor is restricted. In addition, when an external force is applied upward to the flat conductor, the upper surface of the front end region at both ends in the width direction of the main body is locked with the restriction arm of the restriction metal, thereby restricting the upward movement of the main body. The Thus, in the present invention, the movement of the flat conductor in both the rear and upper directions is restricted, and the flat conductor is prevented from coming off from the connector.

  The movable member is located at the same position as the locking portion in the front-rear direction so that when the movable member is in the closed position, the movable member enters the notch recess of the flat conductor from above and prevents the flat conductor from coming out backward. It is preferable that the lower surface of the movable member has a protrusion that can be locked with the front edge of the notch recess. Thus, by providing the projecting portion on the movable member, the rearward movement of the flat conductor is restricted not only by the locking portion but also by the projecting portion of the movable member. Omission can be prevented better.

  It is preferable that the latching | locking part is provided in the latching metal fitting hold | maintained at a housing. By providing the locking portion on the locking metal fitting, the strength of the locking portion can be increased, and thus the flat conductor can be prevented from coming out backward.

  The movable member can be rotated between an open position and a closed position with an axis extending in the width direction as a rotation center, and the locking metal member extends toward the rear and is elastically displaceable in the vertical direction. The elastic arm portion has a pressing protrusion that protrudes upward and contacts the lower surface of the flat conductor with contact pressure, and presses the protruding portion of the movable member and the elastic arm portion. The protrusion rotates when the flat conductor is pulled backward to rotate the movable member toward the closed position based on the force received by the protrusion engaging with the front edge of the notch recess of the flat conductor. The movable member is moved to the closed position based on a moment around the center and a reaction force generated by the movable member rotating in response to the moment pressing the pressing projection through the flat conductor. Opposite to other moments around the rotation center It is preferably provided at the position of that relationship.

  As described above, in the flat conductor electric connector in which the protrusion of the movable member and the pressing protrusion of the elastic arm are provided at the positions where the moments around the rotation center of the movable member face each other, the flat conductor is When the protrusion of the movable member is pulled rearward and the protrusion of the movable member is locked to the front edge of the cut recess of the flat conductor, a moment in the direction of bringing the movable member to the open position is exerted on the movable member. It operates around the axis of the center of rotation. As a result, since the upper surface of the flat conductor is pushed down by the movable member, the pressing protrusion of the elastic arm portion of the locking metal fitting is also pushed down by the flat conductor. Therefore, another moment is generated in the direction to return the movable member to the closed position based on the reaction force from the pressing protrusion, and the moment in the direction to bring to the open position is relieved by the other moment. As a result, since the movable member is not brought to the open position, it is possible to satisfactorily prevent the flat conductor from coming off.

  The locking portion is preferably formed on the elastic arm portion. When the locking portion is formed on the elastic arm portion, when the flat conductor is inserted into the receiving space, the elastic arm portion is first pushed down by the front end portion of the flat conductor and elastically displaced. Then, when the front end portion passes through the position of the locking portion, the elastic displacement state is released, and the locking portion of the elastic arm portion enters the notch recess of the flat conductor from below, and the notch recess It is located so that it can be locked with the leading edge. That is, the flat conductor can be temporarily held in the receiving space before the movable member is brought to the closed position.

  It is preferable that the restricting bracket extends so that the restricting arm portion is inclined rearward in the width direction. In this way, by inclining the restricting arm portion in the width direction side, the restricting arm portion is applied to the upper surface of the front end region of the main body portion of the flat conductor as compared with the case where the restricting arm portion is provided to extend straight backward without being inclined. A wide range in the width direction in contact can be secured. Therefore, the upward movement of the main body of the flat conductor can be well regulated.

  As described above, in the present invention, in addition to the restricting metal fitting that restricts the upward movement of the flat conductor, the locking portion that prevents the backward movement of the flat conductor is provided, so that it is more reliable. The flat conductor can be prevented from coming off.

It is the perspective view which showed the electrical connector for circuit boards which concerns on 1st embodiment with the flat type conductor. It is a top view of the connector of FIG. 3A is a sectional view taken along the line IIIA-IIIA in FIG. 2, and FIG. 3B is a sectional view taken along the sectional view taken along the line IIIB-IIIB. It is IV-IV sectional drawing of FIG. FIG. 5 is a VV cross-sectional view of FIG. It is a connector sectional view when a movable member exists in an open position after insertion of a flat conductor, (A) shows a section in the 1st terminal position, and (B) shows a section in the 2nd terminal position. It is connector sectional drawing in the latch metal fitting position when a movable member exists in an open position after insertion of a flat type conductor. FIG. 6 is a cross-sectional view of the connector at the position of the restricting bracket when the movable member is in the open position after insertion of the flat conductor. It is a connector sectional view when a movable member exists in a closed position after insertion of a flat type conductor, (A) shows a section in the 1st terminal position, and (B) shows a section in the 2nd terminal position. FIG. 6 is a cross-sectional view of the connector at the position of the locking bracket when the movable member is in the closed position after the flat conductor is inserted. FIG. 6 is a cross-sectional view of the connector at the position of the restricting bracket when the movable member is in the closed position after insertion of the flat conductor. It is connector sectional drawing in the protrusion part position of this movable member when a movable member exists in a closed position after insertion of a flat type conductor. It is sectional drawing in the latch metal fitting position of the connector which concerns on 2nd embodiment, (A) is before insertion of a flat conductor, (B) After insertion of a flat conductor, when a movable member is in an open position ( C) It is sectional drawing when a movable member exists in a closed position after insertion of a flat conductor. It is the fragmentary top view in the control metal fitting position of a connector, (A) is a top view of the connector which concerns on 3rd embodiment, (B) is a top view of the connector which concerns on 4th embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

<First embodiment>
FIG. 1 is a perspective view showing an electrical connector for a circuit board according to this embodiment together with a flat conductor, and FIG. 2 is a plan view of the connector and the flat conductor of FIG. 3A is a sectional view taken along line IIIA-IIIA in FIG. 2, FIG. 3B is a sectional view taken along line IIIB-IIIB in FIG. 2, FIG. 4 is a sectional view taken along line IV-IV in FIG. It is VV sectional drawing, and has shown the cross section in the position of the below-mentioned 1st terminal, 2nd terminal, a latching metal fitting, and a control metal fitting, respectively.

  A circuit board electrical connector 1 (hereinafter simply referred to as “connector 1”) is a connector connected to a flat conductor F to be connected, and a circuit board (not shown) to which the connector 1 is attached and the above flat type. The conductor F is electrically connected.

  The flat conductor F is formed so that the front end F1 is narrower than the main body F2 extending rearward (downward in FIGS. 1 and 2) from the front end F1. Further, the flat conductor F has a notch recess F4 formed by notching both side edges at the transition part F3 from the front end part F1 to the main body part F2. On the lower surface of the flat conductor F, a plurality of corresponding portions (not shown) extending in the front-rear direction (longitudinal direction) of the flat conductor F and having conductivity are provided in the width direction of the flat conductor F (FIG. 1, FIG. The left and right directions in FIG. 2 are arranged at predetermined intervals. In FIGS. 1 and 2, the rear side portion of the main body F2 is not shown.

  The connector 1 includes a synthetic resin housing 10 that extends in the width direction of the main body F2 of the flat conductor F (left and right in FIGS. 1 and 2) and has a substantially rectangular parallelepiped outer shape that guides the flat conductor F while guiding it. A plurality of first terminals 20, second terminals 30, locking metal fittings 40 and restriction metal fittings 50, which are held by the housing 10 so that the surfaces are parallel to each other, and a synthetic resin provided so as to be rotatable. And a movable member 60 made of metal.

  As often seen in FIGS. 1 and 2, the first terminals 20 and the second terminals 30 are alternately arranged in the width direction of the housing 10. The locking fitting 40 is located outward in the width direction with respect to the terminals located at both ends in the width direction in the terminal group including the first terminal 20 and the second terminal 30. The restricting metal fitting 50 is located outward of the locking metal fitting 40 in the width direction. Hereinafter, when it is not necessary to distinguish the first terminal 20 and the second terminal 30, they are collectively referred to as “terminals 20 and 30”.

  As shown in FIGS. 3A, 3B, 4 and 5, the housing 10 has a plurality of grooves for holding the terminals 20, 30, the locking fitting 40, and the restriction fitting 50. The housings 10 are arranged in the width direction. The groove portion has a slit shape extending in a direction perpendicular to the width direction of the housing 10. Further, all the groove portions are opened rearward (leftward in FIGS. 3A, 3B, 4 and 5), and the rear half portion communicates with the width direction (direction perpendicular to the paper surface). The receiving space 11 for receiving the flat conductor F from behind is formed. Hereinafter, the groove portions corresponding to the terminals 20 and 30, the locking metal fitting 40 and the restriction metal fitting 50 are referred to as “first terminal holding groove 12”, “second terminal holding groove 13”, “locking metal fitting holding groove 14” and “regulation”, respectively. These are referred to as “metal holding grooves 15” and are collectively referred to as “holding grooves 12, 13, 14, 15”.

  As shown in FIGS. 3A, 3B, 4 and 5, respectively, the rear end of the upper wall 16 of the housing 10 is the bottom wall at the positions of the holding grooves 12, 13, 14, and 15. 17 is located in front of the rear end of the receiving space 11, and the rear half of the receiving space 11 is opened upward. That is, the rear half of the receiving space 11 is opened rearward and upward, and the insertion opening for receiving the flat conductor F is formed wide. Therefore, the positioning and insertion of the flat conductor F into the receiving space 11 is prevented. It has become easy. Further, in a space adjacent to the rear end portion of the upper wall 16, a shaft portion described later as a rotation center of the movable member 60 is located.

  As shown in FIG. 3A, the first terminal holding groove 12 has an upper groove portion 12A extending in the front-rear direction (the left-right direction in FIG. 3A) along each of the upper wall 16 and the bottom wall 17. And a lower groove 12B. A first terminal holding wall 19 for holding the first terminal 20 is formed between the upper groove portion 12A and the lower groove portion 12B at the forward position. The upper groove portion 12A and the lower groove portion 12B are formed so as to penetrate the first terminal holding wall 19 in the front-rear direction.

  As shown in FIG. 3B, the second terminal holding groove 13 is formed as a groove portion that extends along the upper wall 16, the front wall 18, and the bottom wall 17. As shown in FIG. 4, the locking metal fitting holding groove 14 is also formed as a groove portion extending along the upper wall 16, the front wall 18 and the bottom wall 17, similarly to the second terminal holding groove 13. . Further, as shown in FIG. 5, the restriction metal holding groove 15 is formed as a hole that penetrates in the front-rear direction at a position closer to the lower side of the front half of the housing 10.

  The 1st terminal 20, the 2nd terminal 30, the latching metal fitting 40, and the control metal fitting 50 are made by stamping, maintaining the board surface of a metal plate. The first terminal 20 and the second terminal 30 are terminals having different shapes, and the width of the first terminal 20 and the second terminal 30 is maintained while maintaining a posture in which the plate surface is perpendicular to the width direction of the housing 10 as seen in FIGS. They are arranged alternately in the direction. The first terminal 20 and the second terminal 30 are positioned corresponding to a plurality of corresponding portions (not shown) arranged on the lower surface of the flat conductor F, respectively.

  As is often seen in FIG. 3A, the first terminal 20 includes a base portion 21 that extends in the vertical direction, a first upper arm portion 22 that extends rearward from the upper portion of the base portion 21, and a lower portion of the base portion 21. A first lower arm portion 23 extending rearward in parallel with the upper arm portion 22 and a connection portion 24 extending downward and forward from the lower portion of the base portion 21 are provided. The first terminal 20 is press-fitted into the first terminal holding groove 12 from the front and is held in the first terminal holding groove 12.

  The first upper arm portion 22 extends rearward along the upper wall 16 from the rear end portion of the upper wall 16. A held projection 22A is formed on the upper edge of the intermediate portion in the front-rear direction of the first upper arm portion 22, and the held projection 22A bites into the upper inner wall surface of the first terminal holding groove 12 and enters the upper side. Locks to the inner wall.

  The first lower arm portion 23 extends rearwardly from the rear end portion of the first upper arm portion 22 along the bottom wall 17 and extends near the rear end portion of the bottom wall 17. The lower edge portion of the first lower arm portion 23 is in contact with the lower inner wall surface of the first terminal holding groove 12, and the rear half portion is slightly raised upward toward the rear and becomes flexible. ing. A first contact portion 23 </ b> A that protrudes upward from the first terminal holding groove 12 to the receiving space 11 is provided at the rear end portion of the first lower arm portion 23. Further, the first lower arm portion 23 is formed with a held protrusion 23B that protrudes upward at the upper edge of the front side position. The held projection 23B bites into the lower surface of the first terminal holding wall 19 and is locked to the lower surface in the front-rear direction.

  The connection portion 24 extends downward and forward from the lower portion of the base portion 21 to the outside of the first terminal holding groove 12, and its lower edge is located at substantially the same level as the lower surface of the bottom wall 17. Can be connected to a corresponding circuit section (not shown).

  As is often seen in FIG. 3B, the second terminal 30 includes a base portion 31 extending in the vertical direction, a second upper arm portion 32 extending rearward from the upper portion of the base portion 31, and a lower portion of the base portion 31. A second lower arm portion 33 that extends parallel to the two upper arm portions 32 and extends rearward along the bottom wall 17, and extends rearward from the base portion 31 at an intermediate position between the second upper arm portion 32 and the second lower arm portion 33 in the vertical direction. And a flexible intermediate arm 34. The second terminal 30 is press-fitted into the second terminal holding groove 13 from behind and is held by the second terminal holding groove 13.

  A held projection 31A that protrudes upward is formed on the upper edge of the base 31. The held projection 31A bites into the upper inner wall surface of the second terminal holding groove 13 and the upper inner wall surface. Locked. The second upper arm portion 32 extends to the rear side from the rear end portion of the upper wall 16 along the upper wall 16, and a shaft portion 61 of a movable member 60 described later is rotatably supported at the rear end. An inverted U-shaped shaft support portion 32A is formed. The second lower arm portion 33 is formed with a connection portion 33 </ b> A extending outward from the second terminal holding groove 13 downward and rearward from the rear end portion. The connecting portion 33A has a lower edge located at substantially the same level as the lower surface of the bottom wall 17, and can be connected to a corresponding circuit portion (not shown) of the circuit board. Further, the connection portion 33A is formed with a U-shaped fitting portion 33A-1 opening forward, and the fitting portion 33A-1 is fitted to the rear end portion of the bottom wall 17. ing.

  The intermediate arm portion 34 extends to an intermediate position of the housing 10 at a position closer to the lower side in the vertical direction, and a rear end portion thereof is positioned forward of a shaft portion 61 of the movable member 60 described later. A second contact portion 34A that protrudes upward is formed at the rear end portion, and the second contact portion 34A and a corresponding portion (not shown) provided on the lower surface of the flat conductor F. It comes to be in elastic contact. The top of the second contact portion 34 </ b> A is located slightly below the top of the first contact portion 23 </ b> A of the first terminal 20.

  As shown in FIG. 4, the locking metal fitting 40 is basically the same in shape as the second terminal 30 described above. Therefore, the difference will be mainly described here, and the portion corresponding to the second terminal 30 will be described. Is a reference numeral added with 10 and its description is omitted.

  A locking portion 43 </ b> B that protrudes upward from the locking bracket holding groove 14 into the receiving space 11 is formed on the upper edge of the lower arm portion 43 of the locking bracket 40 at a position near the rear. As shown in FIG. 4, the locking portion 43B is located behind the movable member 60 in the open position and ahead of the restriction arm portion 53 and the restriction protrusion 53A of the restriction fitting 50 described later. And is provided at substantially the same position as the base 51 of the restriction metal 50 in the front-rear direction. As is often seen in FIG. 4, the locking portion 43 </ b> B extends and inclines as the rear side edge portion moves forward, and the front side edge portion extends substantially vertically to extend in the vertical direction. . The locking portion 43B is provided at a position that can be locked with the front edge of the cutout recess F4 of the flat conductor F inserted into the receiving space 11, and, as will be described later, the front edge of the cutout recess F4. Locking in the front-rear direction prevents the flat conductor F from coming out backward.

  In the locking metal fitting 40, a portion corresponding to the connection portion 33A of the second terminal 30 is formed as a fixing portion 43A for attachment to the circuit board. The fixing portion 43A is fixed to the circuit board by solder at a lower portion thereof. Further, in the locking metal fitting 40, the portion corresponding to the second contact portion 34A of the intermediate arm portion 34 of the second terminal 30 contacts the lower surface of the flat conductor F with a contact pressure as will be described later. It is formed as a pressing projection 44A that presses F upward. The pressing protrusion 44 </ b> A protrudes upward at a rear position with respect to the second contact portion 34 </ b> A of the second terminal 30, and a top portion thereof is positioned forward of the shaft portion 61 of the movable member 60.

  As shown in FIG. 5, the restriction fitting 50 includes a press-fit arm portion 52 that extends forward from a base portion 51 that is located on the rear end side of the housing 10, and an upper portion of the base portion 51 that extends rearward to the outside of the housing. It has a restricting arm portion 53 that extends and a fixing portion 54 that extends rearward from the lower portion of the base portion 51. The restriction fitting 50 is held in the restriction fitting holding groove 15 by press-fitting the press-fitting arm portion 52 into the restriction fitting holding groove 15 from behind. Two held projections 52A and 52B are formed on the upper edge of the press-fitting arm portion 52 so as to be aligned in the front-rear direction and projecting upward, and the restriction fitting 50 is press-fitted into the restriction fitting holding groove 15. In this case, the restriction metal holding groove 15 is caught in the upper inner wall surface and is locked to the upper inner wall surface.

  The horizontal U-shaped portion formed by the lower edge of the restricting arm portion 53, the rear edge of the base portion 51, and the upper edge of the fixing portion 54 and opened rearward is the front end of both ends in the width direction of the main body portion F2 of the flat conductor F. A side portion is received (see FIGS. 8 and 11). The restricting arm 53 is formed with a restricting protrusion 53A that protrudes downward at the rear end thereof. As will be described later, the restricting arm 53 is engaged with the upper surface of the front end region at both ends in the width direction of the main body F2, and the main body The upward movement of F2 is restricted. As can be often seen in FIG. 4, the horizontal U-shaped portion is located behind the locking portion 43 </ b> B of the locking metal fitting 40. The fixing portion 54 is a portion used for attachment to the circuit board, similarly to the fixing portion 43A of the locking metal fitting 40 described above, and its lower edge is located at substantially the same level as the lower surface of the bottom wall 17. Thus, the circuit board is fixed with solder.

  As shown in FIGS. 1 and 2, the movable member 60 extends over substantially the entire width direction of the housing 10, and has an open position and a terminal that allow the flat conductor F to be inserted into the receiving space 11. It can rotate between a closed position where the contact pressure of the corresponding portion of the flat conductor F with respect to the contact portions 23A, 34A of 20 and 30 is increased. 1 to 6 show a state in which the movable member 60 is in the open position.

  The movable member 60 has the lower half of the surface facing backward when in the open position, that is, the front half of the surface facing downward when in the closed position, the upper surface of the flat conductor F at the closed position. It is formed as a pressing surface 60A that presses downward.

  The lower edge portion of the movable member 60 in the open position has a comb-like shape in which a groove portion 60B is formed at a position corresponding to the second terminal 30 and the locking bracket 40 in the width direction, as seen in FIGS. I am doing. As shown in FIG. 3B and FIG. 4, the opposing groove inner surfaces of the groove portions 60B of the movable member 60 are provided in an island shape at the lower position in the groove portion 60B, and the width of the movable member 60 They are connected by a shaft portion 61 extending in a direction (a direction perpendicular to the paper surface). When viewed in the width direction, the shaft portions 61 of the respective groove portions 60B are formed at the same position, and have the same axis extending in the width direction as the center of rotation. When the movable member 60 is in the open position, the shaft portion 61 has a shape in which a cross section perpendicular to the axis is cut out in a circular lower portion, and the pressing surface 60A of the movable member 60 is flat in the closed position. It functions as a cam for pressing the mold conductor F.

  As is often seen in FIG. 1, the movable member 60 has an end shaft portion 62 that protrudes outward in the width direction at the lower position of both ends in the width direction and is positioned corresponding to the restricting metal fitting 50. is doing. As is often seen in FIG. 5, the end shaft portion 62 has a shape extending in the vertical direction when in the open position, and has the same axis as the shaft portion 61 as the center of rotation. Hereinafter, when it is not necessary to distinguish between the shaft portion 61 and the end shaft portion 62, they are collectively referred to as “shaft portions 61, 62”.

  As shown in FIG. 3B and FIG. 4, the rear end portion of the second upper arm portion 32 of the second terminal 30 and the upper arm portion 42 of the locking metal fitting 40 are in the groove portion 60 </ b> B of the movable member 60. The shaft support portion 32A of the second terminal 30 and the shaft support portion 42A of the locking metal fitting 40 are located in the groove portion 60B. The shaft support portions 32A and 42A cover the shaft portion 61 from above with its inverted U-shaped inner edge. Further, as shown in FIG. 5, the upper edge of the base portion 51 of the restriction metal 50 supports the end shaft portion 62 from below. Therefore, when viewed in the width direction, the shaft portions 61 and 62 are rotatably supported by the shaft support portions 32A and 42A and the base portion 51, and the movable member 60 is prevented from coming off.

  As shown in FIG. 3A, the movable member 60 has a groove 60C that opens downward and forward at the lower end of the movable member 60 in the open position at a position corresponding to the first terminal 20. ing. The groove portion 60C allows the rear end portion of the first upper arm portion 22 of the first terminal 20 to enter, thereby preventing the rear end portion from interfering with the movable member 60.

  As is often seen in FIG. 1, the movable member 60 has angular protrusions 63 protruding rearward at both ends in the width direction of the pressing surface 60 </ b> A at the open position. The protrusion 63 is located between the locking fitting 40 and the restriction fitting 50 in the width direction of the connector 1. Further, when the movable member 60 is in the closed position, the protruding portion 63 protrudes downward at the same position in the front-rear direction as the locking portion 43B of the locking bracket 40, and together with the locking portion 43B, the flat conductor F The front edge of the cutout recess F4 can be locked (see FIG. 12).

  Next, assembly of the connector 1 having such a configuration will be described.

  First, the first terminal 20 is attached to the first terminal holding groove 12 of the housing 10 from the front. Specifically, the first upper arm portion 22 and the first lower arm portion 23 of the first terminal 20 are inserted into the upper groove portion 12A and the lower groove portion 12B from the front, respectively, and the first terminal 20 is press-fitted. As a result, as shown in FIG. 3A, the held protrusion 22A of the first terminal 20 bites the upper inner wall surface of the upper groove portion 12A and the held protrusion 23B bites the lower surface of the first terminal holding wall 19. The first terminal 20 is held in the first terminal holding groove 12.

  The second terminal 30 is attached by being press-fitted into the second terminal holding groove 13 of the housing 10 from behind. As a result, as shown in FIG. 3B, the held protrusion 31 </ b> A of the second terminal 30 bites into the upper inner wall surface of the second terminal holding groove 13 and the fitting portion 33 </ b> A- 1 is formed on the bottom wall 17. The second terminal 30 is held in the second terminal holding groove 13 by being fitted to the rear end.

  Further, the locking fitting 40 is press-fitted and attached to the locking fitting holding groove 14 of the housing 10 from the rear. As a result, as shown in FIG. 4, the held protrusion 41 </ b> A of the locking fitting 40 bites into the upper inner wall surface of the locking fitting holding groove 14, and the fitting portion 43 </ b> A- 1 is the rear end portion of the bottom wall 17. The locking fitting 40 is held in the locking fitting holding groove 14. The terminals 20 and 30 and the locking fitting 40 may be attached in any order.

  Next, the shaft portion 61 of the movable member 60 is advanced from below into the inverted U-shaped portion of the shaft support portion 32A of the second terminal 30 and the shaft support portion 42A of the locking metal fitting 40. And the control metal fitting 50 is press-fitted into the control metal fitting holding groove 15 of the housing 10 from the rear while maintaining this state. As a result, the held protrusions 52 </ b> A and 52 </ b> B of the regulation fitting 50 bite into the upper inner wall surface of the regulation fitting holding groove 15, and the regulation fitting 50 is held in the regulation fitting holding groove 15. By attaching the restriction metal 50, the end shaft portion 62 of the movable member 60 is supported from below by the upper edge of the base 51 of the restriction metal 50, and the movable member 60 is rotatably supported. In this way, the assembly of the connector 1 is completed.

  Next, an operation for connecting the connector 1 and the flat conductor F will be described.

  First, the movable member 60 of the connector 1 is brought to the open position as shown in FIGS. 1 to 5, and the flat conductor F is inserted from the rear toward the receiving space 11 of the connector 1. FIGS. 6A, 6B, 7 and 8 are longitudinal sectional views in a state where the insertion of the flat conductor F is completed, and FIG. 6A shows the position of the first terminal 20, FIG. B) shows the position of the second terminal 30, FIG. 7 shows the position of the locking fitting 40, and FIG.

  In the present embodiment, as described above, the rear half of the receiving space 11 of the connector 1 is opened wide not only to the rear but also upward, and the locking portion 43B is exposed upward. Therefore, the flat conductor F is brought into the receiving space 11 from a direction in which the rear portion of the flat conductor F is slightly inclined upward with respect to the horizontal direction, and the notch recess F4 of the flat conductor F1 is formed on the locking portion 43B. Can be located. Further, when the flat conductor F is brought into the receiving space 11 from such a direction, when the front end of the front end F1 of the flat conductor F advances to the front half of the receiving space 11, the front end is the upper inner wall surface of the front half. And since it is guided forward by the side inner wall surface, the insertion operation of the flat conductor F is easily performed. The flat conductor F is inserted until the front end of the front end F1 comes into contact with the front inner wall surface of the receiving space 11 as shown in FIGS.

  When the insertion of the flat conductor F is completed, the flat conductor F is connected to the first upper arm portion 22 and the first lower arm of the first terminal 20 as shown in FIGS. It is located between the arm portion 23, between the second upper arm portion 32 and the intermediate arm portion 34 of the second terminal 30, and between the upper arm portion 42 and the intermediate arm portion 44 of the locking bracket 40. Further, as shown in FIG. 6A, the lower surface of the flat conductor F is supported by the first contact portion 23A of the first lower arm portion 23 and as shown in FIG. In addition, the locking portion 43B of the locking bracket 40 is located immediately below the notch recess F4.

  Further, in the state where the insertion of the flat conductor F is completed, the front end side portion of the main body portion F2 of the flat conductor F enters the horizontal U-shaped portion of the regulating bracket 50 from the rear as seen in FIG. Then, below the restriction arm portion 53, it is in contact with the restriction protrusion 53 </ b> A of the restriction arm portion 53. Further, the flexible front end portion of the main body F2 interferes with the restricting protrusion 53A and bends downward.

  In the present embodiment, when the flat conductor F is inserted into the receiving space 11, the front end side portion of the main body portion F <b> 2 is moved from the front end F <b> 1 to the front half of the receiving space 11. It enters into the horizontal U-shaped part. That is, the front end side portion of the main body portion F2 enters the horizontal U-shaped portion while the front end portion F1 is guided, so that the front end side portion can be easily brought into the horizontal U-shaped portion.

  Next, the movable member 60 is rotated and brought to the closed position. 9 to 11 are longitudinal sectional views when the movable member 60 is in the closed position. FIG. 9A is the position of the first terminal 20, FIG. 9B is the position of the second terminal 30, and FIG. 10 shows the position of the locking metal fitting 40, and FIG.

  When the movable member 60 is brought to the closed position, a predetermined region extending from the front end F1 to the transition portion F3 in the flat conductor F is moved to the first contact portion 23A and the second contact portion 23A of the first terminal 20 by the pressing surface 60A of the movable member 60. The second contact portion 34A of the terminal 30 is pushed down. As a result, as shown in FIGS. 9A, 9B, and 10, the first contact portion 23A of the first terminal 20 located below the flat conductor F and the second terminal 30 The two contact portions 34A and the pressing protrusion 44A of the locking metal fitting 40 are pressed by the flat conductor F and elastically displaced downward. Accordingly, the first contact portion 23A, the second contact portion 34A, and the pressing protrusion 44A are in contact with the lower surface of the flat conductor F with contact pressure, and the first contact portion 23A, the second contact portion 34A, and the flat conductor F are contacted. Are electrically connected to each other.

  Further, when the predetermined region of the flat conductor F is pushed down, as shown in FIG. 10, the notch recess F4 is largely displaced below the front end side portion of the front end portion F1, and the locking fitting 40 The locking portion 43B relatively enters the cutout recess F4 from below, and can be locked with the front edge of the cutout recess F4 so as to prevent the flat conductor F from coming out backward. Further, when the predetermined area is pushed down, the main body portion F2 also moves downward, and as shown in FIG. 11, the restriction arm portion 53 of the restriction fitting 50 and the upper surface of the front end side portion of the main body portion F2 A slight gap is formed between them.

  In the present embodiment, since the front end side portion of the main body portion F2 is located below the restricting arm portion 53 of the restricting bracket 50 in a state where the flat conductor F is connected to the connector 1, When the external force acts upward, the upper surface of the front end region of the main body portion F2 is locked with the restricting protrusion 53A of the restricting arm portion 53, so that the upward movement of the main body portion F2 is restricted. Further, since the locking portion 43B of the locking metal fitting 43 is located in the notch recess F4 of the flat conductor F, when a backward external force acts on the flat conductor F, the locking portion of the locking metal fitting 40 is provided. 43B is engaged with the front edge of the notch recess F4, and the backward movement of the flat conductor F is restricted.

  Thus, in this embodiment, in addition to the restricting metal fitting 50 that restricts the upward movement of the flat conductor F, the engaging metal fitting formed with the engaging portion 43B that prevents the flat conductor F from moving backward. Since 40 is provided, the flat conductor F can be prevented from coming off more reliably. Further, in the present embodiment, since the locking metal fitting 40 and the restriction metal fitting 50 as the metal members are provided, the strength against external force is sufficiently ensured, and the effect of preventing the flat conductor F from coming off is improved. Further, as shown in FIG. 12, the protrusion 63 of the movable member 60 enters the cutout recess F4 of the flat conductor F from above, and not only by the locking portion 43B but also by the protrusion 63. Since the rearward movement of the flat conductor F is restricted, the flat conductor F can be more reliably prevented from coming off.

  In the present embodiment, when the movable member 60 is in the closed position, the protrusion 63 of the movable member 60 is located behind and below the shaft portions 61 and 62. Therefore, when the flat conductor F is pulled rearward and the protrusion 63 is locked to the front edge of the notch recess F4 of the flat conductor F, the movable member 60 is brought to the open position. A moment in the direction acts around the rotation center of the shaft portions 61 and 62. As a result, a predetermined region extending from the front end portion F1 of the flat conductor F to the transition portion F3 is pushed down by the movable member 60 at a position in front of the shaft portions 61 and 62.

  However, in this embodiment, when the movable member 60 is in the closed position, the second contact portion 34A of the second terminal 30 and the pressing protrusion 44A of the locking fitting 40 are forward and downward from the shaft portions 61 and 62. positioned. Therefore, when the predetermined area of the flat conductor F is pushed down by the movable member 60, the second contact portion 34A and the pressing protrusion 44A located below the area are also pushed down by the flat conductor F. Thus, in this embodiment, since the intermediate arm part 44 having the pressing protrusion 44A is provided in the locking metal fitting 40, a reaction force is generated by the pressing protrusion 44A in addition to the second contact part 34A. . Then, another moment is generated in the direction of returning the movable member 60 to the closed position based on the reaction force from the second contact portion 34A and the pressing projection 44A. As a result, the moment in the direction brought to the open position by the other moment is relaxed. Therefore, since the movable member 60 is not brought to the open position, it is possible to more reliably prevent the flat conductor F from coming off.

  In this embodiment, since the pressing protrusion 44A is formed in a pointed shape, when the pressing protrusion 44A is pushed down by the flat conductor F, the pressing protrusion 44A is the lower surface of the flat conductor F. And is engaged with the lower surface of the flat conductor F. Therefore, the effect of preventing the flat conductor F from coming out backward is improved.

  In the present embodiment, the locking metal fitting is provided as the metal member. However, the locking portion may be formed as a part of the housing in place of the locking metal fitting as long as the strength can be secured sufficiently. In this case, the locking portion is formed as a protrusion protruding toward the receiving space from the bottom wall of the housing, for example. In the present embodiment, the locking metal fitting and the restriction metal fitting are formed as separate members. Instead, by processing one metal plate, the locking metal fitting and the restriction metal fitting are integrated as one member. It may be formed. Further, in the present embodiment, the locking portion is located inward in the width direction of the housing of the restricting metal fitting, but instead, the engaging portion may be located outside the restricting metal fitting. .

<Second embodiment>
The connector according to this embodiment is different in configuration from the connector of the first embodiment in which the locking portion is formed on the lower arm portion in that the locking portion of the locking metal fitting is formed on the intermediate arm portion. Yes. Since the basic configuration of the connector according to this embodiment is the same as that of the connector according to the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and the configuration of the locking metal fitting which is a difference is the same. The explanation will be focused on.

  FIG. 13 is a cross-sectional view of the connector according to the second embodiment at the position of the locking bracket, where (A) is before insertion of the flat conductor and (B) the movable member is in the open position after insertion of the flat conductor. FIG. 6C is a cross-sectional view when the movable member is in a closed position after insertion of the flat conductor (C).

  As described above, in the locking metal fitting according to the present embodiment, the locking portion is formed not on the lower arm portion but on the intermediate arm portion. As shown in FIGS. 13A to 13C, the locking portion 74 </ b> B of the locking metal fitting 70 is formed as a protrusion protruding upward at the rear end of the intermediate arm portion 74. As seen in FIGS. 13B and 13C, the locking portion 74 </ b> B is provided at the same position in the front-rear direction as the cutout recess F <b> 4 of the flat conductor F inserted into the receiving space 11. Further, the intermediate arm portion 74 is formed with a pressing projection 74A that protrudes upward from the locking portion 74B. The locking portion 74B protrudes above the pressing protrusion 74A. The distance between the top of the locking portion 74B and the lower end of the movable member 60 is smaller than the thickness of the flat conductor F of the flat conductor F.

  When the flat conductor F is inserted into the receiving space 11 of the connector 1 according to the present embodiment, the front end F1 of the flat conductor F abuts on the top of the locking portion 74B, and the intermediate arm 74 is moved downward. It advances forward while being pressed and elastically displaced. When the front end portion F1 passes the position of the locking portion 74B, the intermediate arm portion 74 is released from the elastic displacement state and returns to the free state. As a result, as shown in FIG. 13B, the locking portion 74B relatively enters the cutout recess F4 from below and is positioned so as to be locked with the front edge of the cutout recess F4. Therefore, according to the present embodiment, in the state where the movable member 60 is in the open position, even if a backward external force acts on the flat conductor F, the flat conductor F is prevented from coming off by the locking portion 74B. The so-called temporary holding of the flat conductor F is possible.

  Next, when the movable member 60 is brought into the closed position, as shown in FIG. 13C, the flat conductor F is pushed down by the pressing surface 60A of the movable member 60, and the intermediate arm portion 74 is also in the flat shape. When pressed by the conductor F, it is elastically displaced downward. As a result, the state in which the locking portion 74B is positioned in the notch recess F4 is maintained, and the pressing projection 74A comes into contact with the lower surface of the flat conductor F with contact pressure. Further, as shown in FIG. 13C, the intermediate arm portion 74 elastically displaced downward has a lower edge at the rear end thereof in contact with an upper edge of the lower arm portion 73, and more than that of the intermediate arm portion 74. Is displaced downward. Therefore, the state in which the locking portion 74B is positioned so as to be locked with the front edge of the notch recess F4 is maintained, and the flat conductor F is prevented from coming off more reliably.

<Third embodiment>
In the connector according to this embodiment, the restricting arm portion of the restricting bracket extends rearward in the connector width direction, that is, inclines toward the locking bracket side, and the restricting arm portion extends straight rearward. The configuration differs from the connector according to the first embodiment. The basic configuration of the connector according to this embodiment is the same as that of the connector according to the first embodiment. The configuration will be mainly described.

  FIG. 14A is a partial plan view of the connector according to this embodiment at the position of the restricting bracket. As shown in the figure, the restricting arm portion 83 of the restricting fitting 80 in the present embodiment has its rear end portion (lower end portion in the figure) bent slightly toward the locking fitting 40 side. Further, the lower edge of the rear end portion of the restricting arm portion 83 has a straight shape, and no protrusion such as the restricting protrusion 53A of the restricting arm portion 53 in the first embodiment is formed.

  In this way, by inclining the restricting arm portion 83 inward in the width direction, the flat conductor is compared with the case where the restricting arm portion 53 is provided to extend straight backward without being inclined as in the first embodiment. A large range in the width direction can be ensured in contact with the upper surface of the front end region of the main body portion F2. Therefore, the upward movement of the main body F2 can be well regulated.

  Further, similarly to the first embodiment, a restriction protrusion (not shown) may be formed on the lower edge of the rear end portion of the restriction arm 83. In this case, the restricting arm portion restricts the upward movement of the main body portion F2 at the inner position in the width direction as compared with the first embodiment by the restricting protrusion, and thus the main body portion having flexibility. The movement of F2 can be more reliably regulated.

<Fourth embodiment>
In the connector according to this embodiment, the restricting arm portion of the restricting bracket extends rearward in the connector width direction, that is, inclines in a direction away from the locking bracket, so that the restricting arm portion is straight back toward the rear. The structure differs from the extended connector according to the first embodiment. The basic configuration of the connector according to this embodiment is the same as that of the connector according to the first embodiment. 14B is a partial plan view of the connector according to the present embodiment at the position of the restricting metal fitting. As shown in the figure, the restricting arm part 93 of the restricting metal fitting 90 in this embodiment is slightly bent toward the direction in which the rear end part (the lower end part in the same figure) separates from the locking metal fitting 40. . Further, the lower edge of the rear end portion of the restriction arm portion 93 has a straight shape, and no protrusion such as the restriction protrusion 53A of the restriction arm portion 53 in the first embodiment is formed.

  In this way, by inclining the restricting arm portion 93 outward in the width direction, the flat conductor is compared to the case where the restricting arm portion 53 is provided to extend straight backward without being inclined as in the first embodiment. A large range in the width direction can be ensured in contact with the upper surface of the front end region of the main body portion F2. Accordingly, even when the flexibility of the flat conductor F is large, the upward movement of the main body portion F2 can be well restricted by the entire lower edge region of the restriction arm portion 93. Further, since the insertion opening of the flat conductor F is formed wider in the width direction, the flat conductor F can be easily inserted. When the flexibility of the flat conductor F is sufficiently small, a restricting protrusion (not shown) is formed on the lower edge of the rear end portion of the restricting arm portion 93 to move the main body portion F2 upward. May be regulated by the regulating projection.

DESCRIPTION OF SYMBOLS 1 Connector 44A, 74A Pressing protrusion 10 Housing 50, 80, 90 Restriction metal fitting 20 First terminal 53, 83, 93 Restriction arm part 30 Second terminal 53A Restriction protrusion 40, 70 Locking metal fitting 60 Movable member 43B, 74B Stop part 63 Protrusion part 44, 74 Intermediate arm part (elastic arm part)

Claims (6)

  An electrical connector to which a flat conductor formed with a narrow width is connected to a main body portion whose front end portion extends rearward from the front end portion, and the receiving space into which the flat conductor is inserted forward from the front end portion Formed in the housing, a plurality of terminals having contact portions connected to corresponding portions of the flat conductor in the receiving space, and the flat conductor to the receiving space. A flat conductor electrical connector comprising: an open position that allows insertion; and a movable member that is movable between a closed position that increases the contact pressure of the corresponding portion of the flat conductor with respect to the contact portion of the terminal. A locking portion provided on the housing or a member held by the housing so as to protrude upward at positions corresponding to both ends in the width direction of the front end portion of the mold conductor, and in parallel with the locking portion in the width direction. And is held by the housing The locking portion is a flat conductor that extends from below into a notch recess formed on both side edges at a transition portion from the front end portion of the flat conductor to the main body portion. The restriction metal fitting is positioned so as to be able to be locked with the front edge of the notch recess so as to prevent detachment of the notch recess, and the restriction fitting extends rearward above the flat conductor and is formed at both ends in the width direction of the main body of the flat conductor An electrical connector for a flat conductor having a restricting arm portion that engages with the upper surface of the front end region and restricts the upward movement of the main body portion.   The movable member is located at the same position as the locking portion in the front-rear direction so that when the movable member is in the closed position, the movable member enters the notch recess of the flat conductor from above and prevents the flat conductor from coming out backward. 2. The flat conductor electric connector according to claim 1, further comprising: a protrusion on the lower surface of the movable member, the protrusion being positioned so as to be engageable with the front edge of the notch recess.   The flat conductor electrical connector according to claim 1, wherein the locking portion is provided on a locking metal fitting held by the housing.   The movable member can be rotated between an open position and a closed position with an axis extending in the width direction as a rotation center, and the locking metal member extends toward the rear and is elastically displaceable in the vertical direction. The elastic arm portion has a pressing protrusion that protrudes upward and contacts the lower surface of the flat conductor with contact pressure, and presses the protruding portion of the movable member and the elastic arm portion. The protrusion rotates when the flat conductor is pulled backward to rotate the movable member toward the closed position based on the force received by the protrusion engaging with the front edge of the notch recess of the flat conductor. The movable member is moved to the closed position based on a moment around the center and a reaction force generated by the movable member rotating in response to the moment pressing the pressing projection through the flat conductor. Opposite to other moments around the rotation center Flat conductor electrical connector of claim 3, that is provided at a position of that relationship.   The flat conductor electric connector according to claim 4, wherein the locking portion is formed on the elastic arm portion.   The flat connector electrical connector according to any one of claims 1 to 5, wherein the restricting bracket has a restricting arm portion extending obliquely rearward and in the width direction.

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