JP2009252692A - Electric connector for flat conductor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector for a flat conductor, which improves work efficiency of insertion of a flat conductor having a locking object part, and surely prevents coming-off of the flat conductor. <P>SOLUTION: The electric connector for a flat conductor includes a fixed wall 12 formed on a housing 10, and a movable wall 20 facing the fixed wall with a space. The movable wall 20 has a lock projection part 26 for locking at a position corresponding to the locking object part of the flat conductor in the connector width direction. The lock projection part 26 includes: an introduction part 26A interfering with the flat conductor to be introduced to displace toward an open position in a direction separating from the fixed wall by a contact force to the flat conductor in the introduction process of the flat conductor toward the front side on the facing surface side to the fixed wall 12; and a lock part 26B formed on the front end side to be lockable to the locking object part of the flat conductor at the front side position relative to the introduction part. The movable wall 20 has a terminal pressing part 24 displacing an elastic contact arm part 34 of a terminal in a direction separating from the flat conductor with the displacement of the flat conductor to the open position in the introduction process. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electrical connector for a flat conductor.

  As the flat conductor, a flexible substrate (FPC), a flat cable, and the like are known. Such flat conductors are often connected to electrical connectors attached to circuit boards. As a connector to which such a flat conductor is connected, for example, there is a connector disclosed in Patent Document 1.

  In the connector of Patent Document 1, the housing has a fixed wall on the side attached to the circuit board, and an operation member that can tilt is supported on the housing, and a flat conductor is interposed between the fixed wall and the operation member. A ribbon cable can be inserted. The terminal metal fitting is held in the housing, and the terminal metal fitting has an arm portion that is bent and deformed by the operation member. When the operation member is pressed by the operator and deformed to the open position, the arm portion also It is deformed along with the operation member, and a flat conductor can be inserted.

When the flat conductor is inserted to a predetermined position, the tip of the flat conductor abuts against the abutting piece of the terminal fitting, and a tilting force is generated in the operating member from the open position to the holding position via the terminal fitting. When the operator senses this tilting force with the fingertip and releases the finger from the operation member, the terminal fitting is bent and presses the flat conductor to return to the original shape before deformation, and thus the flat conductor is pressed and held. The holding force prevents the slipping out.
JP 2000-173700 A

  In the connector of Patent Document 1, there is room for improvement in operability and flat conductor retention.

  First, for operability, push the operating member with the finger of one hand to bring it to the open position, then insert the flat conductor into the connector with the other hand, and confirm that the flat conductor has been inserted to the specified position After that, the flat conductor is held by releasing the finger pressure of one hand, so that the operator must use both hands, the operation to bring the operating member to the open position and the flat Since the operation of inserting a conductor and the two-step operation are necessary, it is required to further simplify the operation.

  Next, in the holding position, the flat conductor is held only by contact pressure with the terminal fitting, so if it is accidentally pulled with a force larger than the frictional force between the terminal fitting, it will come off, or There is also a problem that the insertion position shifts backward.

  In view of such circumstances, it is an object of the present invention to provide an electrical connector for a flat conductor that can further improve the workability of insertion of a flat conductor and reliably prevent the conductor from coming off.

  An electrical connector for a flat conductor according to the present invention has a fixed wall provided in a housing and a movable wall facing the fixed wall with a space therebetween, and has a locked portion for preventing slippage. A receiving portion for receiving the wire toward the front, which is the inner side of the housing, is formed between the fixed wall and the movable wall, and the terminal embedded in the housing has an elastic contact arm portion that elastically contacts the flat conductor. The elastic contact arms are arranged in the width direction of the flat conductor at a position on at least one of the fixed wall and the movable wall.

  In such an electrical connector for a flat conductor, in the present invention, the movable wall has a locking projection for locking at a position corresponding to the locked portion in the width direction. The part is introduced so as to be displaced toward the open position in the direction away from the fixed wall by the contact force with the flat conductor in the process of introducing the flat conductor toward the front to the facing side with the fixed wall. An introduction portion that interferes with the flat conductor, and a locking portion that is formed on the front end side so as to be able to be locked with the locked portion of the flat conductor at a position forward of the introduction portion, and further, the movable wall Is characterized by having a terminal pressing portion that displaces the elastic contact arm portion of the terminal in a direction away from the flat conductor in accordance with the displacement to the open position in the process of introducing the flat conductor.

  To connect the flat conductor to the flat conductor electric connector of the present invention, the flat conductor may be simply inserted into the receiving portion of the connector.

  When the flat conductor is inserted into the receiving portion, in the insertion process, the locking projection of the movable wall receives a contact force from the flat conductor at the introduction portion, and the movable wall is separated from the opposing fixed wall. It is elastically displaced to the open position in the direction of moving away. Along with the displacement of the movable wall, the terminal pressing portion of the movable wall is also displaced in the same direction, and the elastic contact arm portion of the terminal engaged with the terminal pressing portion is pressed by the terminal pressing portion to be a flat conductor. Displacement in a direction away from. That is, the terminal is displaced so that the contact arm portion is moved away from the flat conductor simply by inserting the flat conductor, and the flat conductor can be advanced with low resistance.

  When the flat conductor is inserted to a predetermined position, the locked portion of the flat conductor is disengaged from the introduction portion of the locking protrusion, so that the movable wall returns to the position before the displacement, and as a result, The stop portion is brought to a position where it engages with the locking portion of the locking protrusion, and is not pulled out even if pulled backward.

  In the present invention, the connector has a metal fitting adjacent to the terminal in the terminal arrangement direction, and the metal fitting is elastically covered at a position corresponding to the elastic contact arm portion of the terminal when viewed in the terminal arrangement direction. It is preferable that a pressure arm portion is provided, and the movable wall has a metal fitting pressing portion that presses the elastic pressure arm portion. At a position corresponding to the metal fitting in the arrangement direction, the flat conductor has a portion of the elastic pressure arm portion of the metal fitting that penetrates the flat conductor in the thickness direction of the flat conductor. A notch or the like can be formed so as to engage with the locked portion. In such a configuration, when the movable wall receives an abutting force from the flat conductor at the introduction portion and elastically moves toward the open position, the metal fitting pressing portion displaces the elastic pressed arm portion away from the flat conductor. Thus, the flat conductor can be easily moved forward, and when the flat conductor reaches a predetermined position, a part of the elastic pressed arm portion enters the notch or the like, thereby effectively preventing the flat conductor from coming off.

  In the present invention, the locked portion of the flat conductor is, for example, an ear portion extending outwardly on both side edges in the width direction of the flat conductor, and the locking protrusion of the movable wall is locked. The portion may be in a position that can be locked with the rear edge of the ear portion.

  In the present invention, the movable wall has a rotation supported portion, and the rotation supported portion is rotatably supported by the rotation support portion provided on at least one of the terminal and the housing. It can be movable. When the movable wall receives a contact force from the flat conductor at the introduction portion of the locking projection, the movable wall can rotate about the rotation supported portion.

  In the present invention, the movable wall may be formed integrally with the fixed wall as a part of the housing and connected to the fixed wall by a flexible portion. By doing so, the fixed wall and the movable wall can be formed as one member, and the number of parts is reduced.

  In the present invention, the housing may have a mounting surface to the circuit board on the fixed wall side, and in this case, the movable wall is located on the side opposite to the circuit board, A wide surface can be secured.

  On the contrary, the housing can be provided with a mounting surface to the circuit board at a position on the movable wall side. In this case, the movable wall is provided by a spring portion provided on a fixing bracket attached to the housing. Is preferably biased toward the fixed wall.

  In such a form, since the mounting surface of the fixed wall is on the same side as the movable wall, the area of the mounting surface cannot be secured large, but when extracting the flat conductor, a part of the movable wall, For example, the operation of the flat conductor can be released simply by pressing the release button toward the circuit board, thereby simplifying the operation. In general, pressing is easier than pulling. In the above embodiment in which the movable wall is provided on the opposite side of the circuit board, if a release button is provided on the movable wall, the release button is pulled away from the circuit board and operated. It ’s hard. Therefore, when the movable wall is provided on the side of the circuit board as in this embodiment, when the flat conductor is pulled out, it is only necessary to press the release button toward the circuit board, so that the release can be easily performed.

  As described above, according to the present invention, simply by inserting a flat conductor, the flat conductor pushes the introduction portion of the movable wall to bring it to the open position. As the movable wall moves, the terminal and the elastic contact arm portion are flat. Since the flat conductor is easily inserted, the movable wall returns to the position before the displacement when the flat conductor is inserted to a predetermined position, and the locked portion of the flat conductor is moved to the position of the movable wall. Since it is locked with the locking portion, it is reliably prevented from coming off. Thus, the insertion and locking of the flat conductor can be achieved by only one operation of inserting the flat conductor, and the operator only has to insert it with one hand.

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

<First embodiment>
The flat conductor electrical connector 1 of the present embodiment, which is shown entirely in FIG. 1, has a housing 10 and a movable wall 20 made of an electrically insulating material. The housing 10 is opened rearward on the insertion side of the flat conductor P, and the upper wall is greatly opened upward except for the front edge portion 11A and the side edge portion 11B. The housing 10 includes a fixed wall 12 that is a bottom wall, and a side wall 13 that connects the side edge portion 11B to the fixed wall 12. The movable wall 20 is disposed so as to be surrounded by the front edge portion 11A and the side edge portion 11B in three directions so as to face the fixed wall 12, and by the housing 10 and the movable wall 20, The connector as a whole has a substantially rectangular parallelepiped outer shape.

  As shown in FIGS. 2 and 3, the housing 10 is provided with a terminal 30 and a metal fitting 40 which are made while maintaining the flat surface of the metal plate. A plurality of terminals 30 are arranged in the width direction of the flat conductor P (also in the width direction of the connector), and metal fittings 40 having the same shape as the terminals 20 are arranged close to the terminals 30 located at both ends of the arrangement range. Has been. Further, a metal fitting 50 is also provided on the side of the metal fitting 40 (see FIG. 1).

  2 is a cross-sectional perspective view of the connector of FIG. 1, in the terminal arrangement direction, FIG. 2 (A) is the position of the terminal 30, FIG. 2 (B) is the position of the metal fitting 40, and FIG. Cross sections are provided at positions closer to the side wall 12 than 40. 3 is a cross-sectional view showing the cross-sectional portion of FIG. 2 in more detail. FIG. 3A is a cross-section at the position of the terminal 30, and FIG.

  As shown in FIGS. 1, 2A, and 3A, the housing 10 is formed with a terminal groove 14 for a terminal 30 penetrating in the front-rear direction. The terminal groove 14 is formed in a slit shape having a groove width substantially equal to the plate thickness of the terminal 30, and is opened upward except for the front edge portion 11 </ b> A of the housing 10. In the terminal groove 14, the upper surface of the rear portion 12A (the left portion in FIG. 3A) of the fixed wall 12 serving as the bottom wall is higher than the upper surface of the front portion 12B. A portion where the rear portion 12A transitions to the front portion 12B is stepped, and is formed with a fixing groove 14A that is recessed rearward. The upper surface of the rear portion 12A forms a flat conductor placement surface 12A-1, but the rear end portion is a tapered portion 12A-2 that gently faces downward toward the rear. The terminal grooves 14 are arrayed at intervals in the width direction of the connector by the number of terminals 30 to be held.

  A metal groove 15 is formed adjacent to the outermost terminal groove 14 in the terminal arrangement range. In this embodiment, the metal groove 15 has substantially the same shape as the terminal groove 14 because the metal 40 has the same shape as the terminal 30, and the fixing groove 12 has the same fixing groove as the fixing groove 14 </ b> A. 15A. A slight difference from the case of the terminal groove 14 is that the upper surface of the rear portion 12A is not a tapered surface but a stepped portion 16 having a flat bottom. The step portion 16 extends to the rear end edge of the rear portion 12A.

  The lower surface of the fixed wall 12 of the housing 10 forms an attachment surface 17 to the circuit board.

  Next, as described above, the terminal 30 is made while maintaining the flat surface of the metal plate as it is, and on the front end side of the housing 10, the front edge portion 11A of the upper wall and the front of the fixed wall 12 as the bottom wall are formed. A to-be-attached portion 31 sandwiched and held between the support portion, a support protrusion 32 protruding rearward from the upper portion of the attached portion 31, and a to-be-held arm portion 33 extending rearward from the lower portion of the attached portion 31; And an elastic contact arm portion 34 extending from the held arm portion 33.

  The support protrusion 32 has a short rear protrusion amount and high rigidity, and has a rotation support part 32A that forms a part of a circle at the rear end. The held arm portion 33 extends from the attached portion 31 so as to contact the fixed wall 12 and protrude into the fixed groove 14A, and is provided with a locking projection 33A in the vicinity of the rear end. The stop protrusion 33A bites into the fixing groove 14A and prevents its removal.

  The elastic contact arm 34 extends forward immediately after protruding upward from a position close to the opening of the fixed groove 14A near the rear end of the held arm portion 33, and then bends and extends rearward to bend the lateral U. It has a letter shape. The elastic contact arm portion 34 has a pressure contact protrusion 34A protruding upward at the upper edge of the connecting portion with the held arm portion 33, and below the portion extending rearward in the horizontal U shape. A contact portion 34B is provided on the edge by a protrusion facing the pressure contact protrusion 34A. The interval between the pressure contact projection 34A and the contact portion 34B is slightly smaller than the thickness dimension of the corresponding portion of the flat conductor. The elastic contact arm portion 34 has a rear end at the rear of the contact portion 34B raised in an inverted L shape, and has a depressed recess 34C at the lower edge.

  Further, the terminal 30 has a connecting portion 35 that contacts the circuit board from the lower end of the front portion.

  Next, although it is the metal fitting 40, since this metal fitting 40 is made in the same shape as the terminal 30, it adds 40 to the code in the terminal 30 to the part corresponding to each part of the terminal 30, and makes the code of 40 units, Each shall be given a name. Such a metal fitting 40 has a mounted portion 41, a support protrusion 42, a held arm portion 43, and an elastic pressure arm portion 44. The support protrusion 42 has a rotation support part 42A, the held arm part 43 has a locking protrusion 43A, and the elastic pressure arm part 44 has a protrusion 44A and a protrusion 44B, and a pressure-receiving recess. 44C is formed. The metal fitting 40 has a fixed leg 45.

  The movable wall 20 arranged so as to form an upper lid with respect to the housing 10 is surrounded on three sides by a front edge portion 11A and a side edge portion 11B of the housing 10. The movable wall 20 is made of an electrically insulating material similar to that of the housing. On the lower surface side on the front edge side, the arcuate concave shape that engages with the rotation support portion 32A of the terminal 30 and the rotation support portion 42A of the metal fitting 40. Is formed so as to extend in the width direction of the connector (in the direction perpendicular to the paper surface in FIG. 3A). The movable wall 20 is rotatable about the rotation support portion 32A.

  A slit-like groove 22 that opens downward and rearward is formed on the lower surface of the movable wall 20 at a position corresponding to each terminal 30 in the terminal arrangement direction, behind the rotating supported portion 21. In the groove portion 22, a window portion 23 that opens upward is formed in a position corresponding to the pressed recess 34 </ b> C of the terminal 30 in the front-rear direction so as to communicate with the groove portion 22. Below the window portion 23, an island-shaped terminal pressing portion 24 that connects the opposing groove inner surfaces of the groove portion 22 is provided. The terminal pressing portion 24 is engaged from below with the pressed recess 34C of the elastic contact arm portion 34 of the terminal 30 so that the movable wall 20 rises upward with the rotation support portion 32A as the center. When the rotation is rotated, the force to lift the pressed recess 34C upward is transmitted to the pressed recess 34C. The rotation support portion 32A can be provided in the housing without being provided in the terminal 32.

  The movable wall 20 has a lower surface 25 parallel to the flat conductor mounting surface 12A-1 formed on the upper surface of the rear portion 12A of the fixed wall 12 in the terminal arrangement direction in the terminal arrangement direction. The space which can insert a flat conductor is formed between 25 and the flat conductor mounting surface 12A-1. A portion near the rear end of the lower surface 25 of the movable wall 20 forms a tapered surface that facilitates insertion of a flat conductor. The lower surface 25 forms an opening edge below the groove 22.

  The movable wall 20 includes both the outer portions of the arrangement range in the terminal arrangement direction including the position of the metal fitting 30 in the same direction. As shown in FIG. Similarly to the portion, a metal fitting pressing portion 24 ′ corresponding to the rotation supported portion 21, the window portion 23, and the terminal pressing portion 24 is provided. Unlike the portion within the arrangement range, the rear portion has a locking projection 26 that projects downward. The locking projection 26 has a right-angled triangular cross section downward, an introduction portion 26A formed with an inclined surface whose rear surface faces upward toward the rear end, and a locking portion whose front end forms a surface perpendicular to the front-rear direction. 26B. A pointed end portion 26C forming an intersection of the introducing portion 26A and the locking portion 26B is located at a corner portion 16A of the step portion 16 formed on the upper surface of the rear portion 12B of the fixed wall 12. Even if the above-mentioned locked part is not the ear part formed on both side edges, the front end part is wide and the step part formed by narrowing at the rear position thereof, the hole part formed between both side edges, Or the protrusion formed in the surface of the flat type conductor may be sufficient.

  As shown in FIG. 2, the flat conductor P connected to the connector 1 having such a configuration has a locked portion P1 formed as an ear on both side edges near the front end on the connector 1 side. In this embodiment, the flat conductor P is provided with a connection pad (not shown) on the upper surface on the front end side, but this connection pad is provided on both the upper and lower surfaces even if provided on the lower surface. It may be done.

  In this embodiment, as shown in FIG. 1, it also has a fixture 50 attached to the rear portion of the housing 10, and the attachment legs 51 of the fixture 50 are firmly fixed to a circuit board (not shown). It is designed to hold the connector.

  Such an electrical connector for flat conductors of this embodiment is used in the following manner.

  (1) First, the connector 1 is attached to a predetermined circuit board (not shown) and connected to a predetermined circuit unit. In the connector 1, the mounting leg 51 of the mounting tool 50 is attached to the circuit board by soldering, the connection part 35 of the terminal 30 is electrically connected to the predetermined circuit part of the circuit board by soldering, and the fixing leg 41 of the metal fitting 40 is fixed. It is attached to the circuit board by solder. Thus, the connector 1 is firmly attached to the circuit board, and the terminal 30 is electrically connected to the corresponding circuit portion.

  (2) Next, the flat conductor P is inserted into this connector. In the state before the insertion shown in FIGS. 3A and 3B, the elastic contact arm 34 of the terminal 30 and the metal fitting 40 The elastic recesses 34C and 44C exert an elastic pressing force downward on the terminal pressing portion 24 and the metal pressing portion 24 ′ of the movable wall 20 due to the elasticity of the elastic pressed arm portion 44. At a position corresponding to the metal fitting 40 in the direction, the pointed end portion 26C of the locking projection 26 of the movable wall 20 is in contact with the front corner portion 16A of the step portion 16 which is the upper surface of the rear portion 12A of the fixed wall 12. In this state, in the portion corresponding to the terminal arrangement range in the connector width direction, the movable wall 20 allows the flat conductor P to be inserted between the lower surface 25 and the upper surface of the rear portion 12A of the fixed wall 12. Forms an interval. Accordingly, since the flat conductor P does not have a portion in contact with the flat conductor in the connector in the arrangement range of the terminals, the locked portion which is an ear portion outside the arrangement range is the above-described portion of the movable wall 20. It is easily inserted until it comes into contact with the introduction portion 26A of the locking projection 26.

  (3) When the locked portion P1 of the flat conductor P comes into contact with the introduction portion 26A of the locking protrusion 26, as shown in FIG. The locking portion P1 applies an upward force to the introduction portion 26A of the locking protrusion 26, and the movable wall 20 is rotated upward about the movable force supported portion 21 by this force. In other words, the locking protrusion is lifted upward, and the flat conductor P can be further inserted.

  (4) The upward rotation of the movable wall 20 associated with the insertion of the flat conductor P means the upward displacement of the terminal pressing portion 24 and the metal fitting pressing portion 34 of the movable wall 20, and these terminals The pressing portion 24 and the metal pressing portion 34 push the pressed portion 34C of the terminal 30 and the pressed portion 44C of the metal fitting upward, and elastically displace the elastic contact arm portion 34 of the terminal 30 and the elastic pressure receiving portion 44 of the metal fitting, The contact portion 34B and the protrusion 44B are displaced upward.

  (5) As a result of the contact portion 34B of the terminal 30 and the protrusion 44B of the metal fitting 40 being displaced upward, the flat conductor P is easily advanced to a predetermined insertion position and the insertion is completed. In this insertion position, the locked portion P1 of the flat conductor P is positioned in front of the locking projection 26 of the movable wall 20 and comes out of the locking projection 26. No longer receiving upward pressing force from the locking projection 26, it is pressed downward by the elastic reaction force of the elastic pressure arm 44 of the metal fitting 40 and returns to its original position (see FIG. 5 (B)). On the other hand, the terminal 30 clamps the flat conductor P between the pressure contact protrusion 34A and the contact portion 34B, and the contact portion 34B is electrically connected to the connection portion of the flat conductor P. Since the contact portion 34B of the terminal 30 is in contact with the flat conductor P and further downward displacement is prevented, the pressed recess 34C of the terminal 30 may be separated from the terminal pressing portion 24 of the movable wall 20. .

  (6) In the connected state (the state shown in FIG. 5A), the rear edge of the engaged portion P of the flat conductor P is connected to the engaging portion 26 which is the front edge of the engaging protrusion 26 of the movable wall 20. Faced in the front-rear direction, even if the flat conductor P is pulled backward, the locked portion P is locked with the locking portion 26 to prevent the flat conductor P from coming off.

  (7) As described above, according to the present embodiment, the flat conductor P is inserted to a predetermined position simply by receiving the insertion force to the connector directed forward, and is surely prevented from coming off.

<Second embodiment>
In the first embodiment, the movable wall is made as a separate member from the housing having the fixed wall. However, in this embodiment, the movable wall is integrally formed as a part of the housing and has a metal fitting. There is a feature that is not.

  6 and 7B, the movable wall 60 that forms the upper wall of the housing 10 in a lid shape is formed in a horizontal U shape at a position outside the terminal arrangement range in the width direction of the connector. The flexible portion 61 is integrally connected to the side wall 13 of the housing 10.

  Within the terminal arrangement range in the connector width direction, the movable wall 60 is rotated by the rotation support portion 32A of the terminal with the rotation supported portion 21 formed on the lower surface thereof as seen in FIG. 7A. Outside the terminal arrangement range, as shown in FIG. 7B, the flexible portion 61 can be turned around the bent portion 61A. Therefore, when the flat conductor is inserted to a predetermined position, the flat conductor can be inserted by turning upward in the flexible portion 61. The locking projection 62 of the movable wall 60 has an introduction portion 62A and a locking portion 62B. After the insertion of the flat conductor is completed, the locking projection 62 is urged downward by the elastic force of the flexible portion 61 and is engaged. The stop portion 62B comes to be locked with the locked portion of the flat conductor.

  According to the present embodiment, not only is the metal fitting unnecessary, but the movable wall is integrated with the housing, and accordingly, the number of components is reduced, the manufacturing cost is reduced, and the management of the components is facilitated.

<Third embodiment>
In the first and second embodiments, the fixed wall is provided on the circuit board side and the movable wall is provided on the side away from the circuit board. However, in this embodiment, the movable wall is provided on the circuit board side and the fixed wall. Is characterized in that it is provided on the side away from this circuit board.

  As shown in FIGS. 8, 9 and 10A and 10B, the housing 10 is large except for a portion where the upper wall is the fixed wall 12 and the lower wall is the attachment surface 17 to the circuit board. The cut-off form is formed, and a movable wall 70 is provided in the cut-out space.

  In the present embodiment, the terminal 30 has an elastic contact arm portion 36 having a substantially S shape and a support arm portion 37 having a straight arm shape. As shown in FIG. 10 (A), this elastic contact arm portion 36 has a substantially S-shape and ensures its elasticity, and the pressure-receiving portion 38 against the movable wall 70 at the rear end position and the front thereof upward. And a projecting contact portion 39.

  The support arm portion 37 has a support protrusion 37 </ b> A facing the contact portion 39 at the rear end thereof, and clamps the flat conductor in cooperation with the contact portion 39.

  At least one of the contact portion 39 and the support protrusion 37A is electrically connected to the connection portion of the flat conductor corresponding to the shape of the flat conductor.

  In the movable wall 70, the lower surface 71 facing the circuit board forms an inclined surface that goes away from the circuit board toward the rear, and in the terminal arrangement range in the connector width direction, the elasticity of the terminal 30 is at the front. A groove portion 72 that accommodates a part of the rear side of the contact arm portion 36 is formed. The groove bottom portion located on the rear end side of the groove portion 72 is formed in a step shape, and a terminal pressing portion 73 protruding forward is provided at the upper portion. The terminal pressing portion 73 elastically contacts the upper edge of the pressure-receiving portion 38 at the tip of the elastic contact arm portion 36 of the terminal 30, and the biasing force based on the elasticity of the elastic contact arm portion 36 from the pressure-receiving portion 38. Is facing upwards.

  The movable wall 70 forms a flat conductor placement surface 74 that is flat in the terminal arrangement range in the connector width direction, and allows the flat conductor to be inserted between the housing fixed wall 12.

  The movable wall 70 has a locking projection 75 at a position outside the terminal arrangement range in the connector width direction, as shown in FIGS. 10 (A) and 10 (B). The locking projection 75 has an introduction portion 75A that forms a surface inclined upward and forward, and a locking surface that is formed in a step shape at the front end position of the introduction portion 75 and forms a surface perpendicular to the front-rear direction. 75B. A point 75C where the introduction portion 75A and the locking surface 75B intersect is in contact with the lower surface of the fixed wall 12.

  Further, the movable wall 70 is provided with a release button portion 76 that protrudes largely upward at an outer end that is outside the locking projection 75 in the connector width direction. The release button portion 76 protrudes above the upper surface of the fixed wall 12 from the cutout portion of the fixed wall 12 of the housing 10.

  A fixing bracket 80 as shown in FIG. 9 is inserted into the side wall 13 of the housing 10. As seen from the two-dot chain line in FIG. 9, the fixing metal 80 has a plate-like press-fit portion 81, a mounting portion 82 that is bent at the lower end and extends outward, and is bent inward and extends forward. It has a spring 83 which is a leaf spring-like rotation support part and a stopper part 84 bent at the rear end.

  When the fixing fitting 80 is press-fitted into a corresponding slit (not shown) of the housing 10, the amount of press-fitting is determined by the stopper portion 84, and the mounting portion 82 protruding downward from the housing 10 is connected to the circuit board. Attachment is possible, and the spring part 83 supports the rotation supported part 77 formed by protruding on the side end wall of the movable wall 70 with a biasing force from below.

  In this embodiment, in FIGS. 10A and 10B, when a flat conductor is inserted from the rear to the front, outside the terminal arrangement range in the connector width direction, the flat conductor is engaged in an ear shape. The stop portion comes into contact with the locking projection 75 of the movable wall 70 at the corresponding position in the connector width direction, exerts a contact force on the introduction portion 75A which is the inclined surface of the locking projection 75, and the lower component force The movable wall 70 is pressed downward. The movable wall 70 that is pivotally supported by the pivot supported portion 77 by the spring portion 83 of the fixing bracket 80 pivots downward and the locking projection 75 is displaced downward to move away from the fixed wall 12. The mold conductor allows further insertion. When the locking projection 75 is pushed down, the terminal pressing portion 73 moves the pressed portion 38 downward against the biasing force from the pressed portion 38 of the terminal 30 within the terminal arrangement range in the connector width direction. Press to displace. Therefore, the space between the contact portion 39 of the terminal and the support protrusion 37A is greatly increased, thereby allowing further insertion of the flat conductor.

  Thus, the flat conductor is inserted up to a predetermined position, and at the insertion completion position, the flat conductor's locked portion is positioned over the locking protrusion 75, and the movable wall 70 is separated from the pressed portion 38 of the terminal 30. Due to the urging force, it returns upwards to the original position. Therefore, the flat conductor is clamped between the contact portion 39 and the support protrusion 37A to make an electrical connection with the terminal, and even if the flat conductor is pulled backward, the locked portion is engaged. The locking portion 75B of the stopping protrusion 75 is not pulled out by being locked.

  When the flat conductor is intentionally extracted, the movable wall 70 is pushed down by pressing the release button 76 of the movable wall 70 downward, and the pressed portion 38 and thus the contact portion 39 of the terminal 30 is displaced downward. Pull the flat conductor backward.

  In this embodiment, the terminal can omit the support arm portion 37 and the support protrusion 37A. In this case, the flat conductor is sandwiched between the contact portion 39 of the elastic contact arm portion 38 of the terminal 30 and the lower surface of the fixed wall 12 shown in FIG.

  The present invention is not limited to the illustrated and described embodiments, but can be variously modified. For example, the introduction part formed in the locking projection of the movable wall may not have an inclined surface. An inclined surface may be formed on the flat conductor, and this may increase the contact pressure with respect to the introduction portion as it is introduced.

It is the perspective view seen from the upper part which shows the external appearance of the whole connector of 1st embodiment of this invention. It is a cross-sectional perspective view which shows the connector of FIG. 1 and the flat conductor inserted in this, (A) is a terminal position in a terminal arrangement direction, (B) is a metal fitting position, (C) is a position between a terminal and a metal fitting. Each is cross-sectioned. FIGS. 2A and 2B are cross-sectional views of the connector of FIG. 1 before insertion of a flat conductor, where FIG. FIGS. 2A and 2B are cross-sectional views of the connector of FIG. 1 in the middle of inserting a flat conductor, where FIG. 1A is a terminal position, and FIG. FIGS. 2A and 2B are cross-sectional views of the connector of FIG. 1 when insertion of a flat conductor is completed, in which FIG. 1A is a terminal position, and FIG. It is the perspective view seen from the upper direction which shows the external appearance of the whole connector of 2nd embodiment of this invention. FIG. 7 is a cross-sectional view of the connector of FIG. 6, where (A) is a terminal position and (B) is a cross section at a flexible portion position. It is the perspective view seen from the upper part which shows the external appearance of the whole connector of 3rd embodiment of this invention. FIG. 9 is a cross-sectional perspective view of the connector of FIG. 8 shown with a flat conductor. 9A is a cross-sectional view of the connector of FIG. 8, and FIG. 9A is a terminal position, and FIG. It is sectional drawing in the terminal position which shows the modification of the connector of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector 60 Movable wall 10 Housing 61 Flexible part 12 Fixed wall 62 Locking protrusion 17 Mounting surface 62A Introduction part 20 Movable wall 62B Locking part 21 Rotating supported part 70 Movable wall 24 Terminal pressing part 75 Locking protrusion 24 'metal fitting pressing part 75A introduction part 26 engagement protrusion 75B engagement part 26A introduction part 77 rotation supported part 26B engagement part 80 fixing metal fitting 30 terminal 83 spring part 32A rotation support part 34 elastic contact arm part 36 elastic Contact arm part 38 Rotation support part 40 Metal fitting

Claims (7)

A receiving portion that has a fixed wall provided in the housing, and a movable wall that faces the fixed wall with a space therebetween, and that receives a flat conductor having a locked portion for preventing it from coming out toward the inside of the housing. Is formed between the fixed wall and the movable wall, and a terminal implanted in the housing has an elastic contact arm portion that elastically contacts the flat conductor, and the elastic contact arm portion is connected to the fixed wall. In the flat conductor electric connector arranged in the width direction of the flat conductor at a position on at least one side of the movable wall,
The movable wall has a locking projection for locking at a position corresponding to the locked portion in the width direction, and the locking projection is forwardly facing the fixed wall. An introduction portion that interferes with the introduced flat conductor so as to be displaced toward an open position in a direction away from the fixed wall by a contact force with the flat conductor in the introduction process of the flat conductor toward the The flat conductor has a locking portion formed on the front end side so that it can be locked with the locked portion of the flat conductor at a more forward position, and the movable wall is open to the open position in the process of introducing the flat conductor. An electrical connector for a flat conductor having a terminal pressing portion for displacing the elastic contact arm portion of the terminal in a direction away from the flat conductor in accordance with the displacement.   The connector has a metal fitting adjacent to the terminal in the terminal arrangement direction, and the metal fitting has an elastic pressure arm part at a position corresponding to the elastic contact arm part of the terminal when viewed in the terminal arrangement direction. The flat connector electrical connector according to claim 1, wherein the movable wall has a metal fitting pressing portion that presses the elastic pressed arm portion.   The latched portion of the flat conductor is an ear portion extending outwardly on both side edges in the width direction of the flat conductor, and the latching portion of the latching protrusion of the movable wall is behind the ear portion. The flat connector electrical connector according to claim 1, wherein the electrical connector is in a position that can be locked with the edge.   The movable wall has a pivot supported part, and the pivot supported part is rotatably supported by a pivot support part provided on at least one of the terminal and the housing. The flat connector electrical connector according to claim 3.   4. The flat mold according to claim 1, wherein the movable wall is formed integrally with the fixed wall as a part of the housing, and is connected to the fixed wall by a flexible portion. Electrical connector for conductors.   2. The electrical connector for a flat conductor according to claim 1, wherein the housing has a mounting surface to the circuit board on the fixed wall side.   2. The housing according to claim 1, wherein the housing has a mounting surface to the circuit board at a position on the movable wall side, and the movable wall is urged toward the fixed wall by a spring portion provided on a fixing bracket attached to the housing. The electrical connector for flat conductors as described.

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