JP2011233487A - Electric connector for flat conductor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector for a flat conductor that gives a feeling of a click during movement of a movable member to a closing position without being made large-sized.SOLUTION: A terminal 20 comprises: a flexible elastic arm portion 23 extending in a front-rear direction and having a contact portion 23A formed; a support arm portion 21 disposed on the opposite side from the elastic arm portion 23 with respect to a flat conductor F; and a coupling portion 24 coupling the support arm portion 21 to the elastic arm portion 23; in which a rotary support portion 21A which supports the movable member 30 movably between an opening position and the closing position is formed at a rear end of the support arm portion 21. The connection portion 25 extends to outside a housing 10, and the movable member 30 is formed such that a pressing portion 35 has an interference amount with respect to the contact portion 23A in an up-down direction from an intermediate position to a movable range end position within a movable range, the interference amount having a maximum value at a position before the end of the movable range and being smaller than the maximum value at the movable range end position.

Description

  The present invention relates to an electrical connector for a flat conductor, and particularly to an electrical connector suitable for an extremely thin flat conductor having a large flexibility.

  As a flat conductor, a flexible substrate (FPC), a flat cable (FFC), and a chip-on-film (COF) in which a chip is arranged on a film that is significantly thinner and more flexible than these are known. Yes. Such a flat conductor is generally provided with a reinforcing plate on one surface and conductors are densely arranged on the other surface, and can be used for a multipolar electrical connector attached to a circuit board. Many. In order to arrange the terminals densely corresponding to the above flat conductors, the multi-pole electrical connector is arranged by arranging the terminals made by maintaining the flat plate surface of the metal plate as it is in the direction perpendicular to the plate surface. Have. As such a connector, for example, a connector disclosed in Patent Document 1 is known.

  In Patent Document 1, a terminal (contact) includes an upper arm portion (slider engagement portion) held on the lower surface side of the upper wall portion of the housing, and a lower arm portion (elasticity) whose free end side extends in a direction substantially parallel to the upper arm portion. A contact leg) and a connecting part (soldering leg) extending out of the housing from a portion where the base parts of the upper arm part and the lower arm part are connected. The upper arm portion movably supports a movable member (slider) that presses a flat conductor disposed on the lower arm portion against the lower arm portion. The movable member has a shaft portion and is supported by the housing so as to be movable between an open position where the flat conductor can be inserted and a closed position which presses the flat conductor.

  The movable member moves with rotation and presses the flat conductor with a pressurizing portion formed as a protruding portion. When the flat conductor is not inserted, that is, when the lower arm portion of the terminal is in a free state, the pressurizing portion moves below the position of the contact portion formed in a protruding shape on the lower arm portion. Is possible. That is, in the vertical direction, the pressing portion has an amount of interference with the contact portion by moving from the open position to the closed position. In actual use, the movable member moves to the closed position after the flat conductor is inserted when the movable member is in the open position. That is, a flat conductor is interposed between the pressurizing part and the contact part. As a result, the flat conductor pressed by the pressurizing portion presses the contact portion to bend and deform the lower arm portion, and the contact portion is displaced downward. Therefore, most of the interference amount is replaced with the displacement amount of the contact portion, and the interference amount does not remain so much.

  The amount of displacement of the contact portion when the movable member moves toward the closed position does not change even when the movable member reaches the final closed position. By maintaining this displacement as it is, the contact pressure between the flat conductor and the contact portion is ensured.

JP-A-11-329618

  However, in Patent Document 1, the movable member moves toward the closed position to press the flat conductor, thereby displacing the contact portion of the terminal. When the displacement reaches the maximum value, the movable member is moved thereafter. Even when the member reaches the closed position as the final position, the displacement amount maintains the value, thereby ensuring the contact pressure. However, on the other hand, although the amount of displacement can be maintained, there is no change in the amount of displacement, so the click feeling is lacking, and it is impossible to sense when the movable member has reached the closed position or when it has reached the closed position. .

  In order to give a click feeling, after the displacement amount reaches the maximum value, the displacement amount becomes small at the closed position, and a certain amount of time is required to sense the change. For that purpose, the pressurization part of the movable member must ensure the shape having a large bulge and the time during which the bulge passes, and this is in the height direction of the movable member when in the closed position. This means that the dimensions are increased, resulting in an increase in the size of the connector in the same direction.

  This invention makes it a subject to provide the electrical connector for flat conductors which can obtain a click feeling at the time of the movement to the closed position of a movable member, without enlarging a connector in view of this situation.

  An electrical connector for a flat conductor according to the present invention includes a contact portion for contact with a flat conductor inserted forward into a receiving portion of a housing, and a connection portion for soldering to a circuit board outside the housing. A plurality of terminals having a flat plate surface of the metal plate are formed and held in the terminal groove of the housing with the direction perpendicular to the plate surface as the arrangement direction.

  In such an electrical connector for a flat conductor, in the present invention, the open position where the receiving portion is opened to allow the insertion of the flat conductor and the closed position where the flat conductor after insertion is pressed against the contact portion of the terminal are respectively set to the starting ends. The movable member has a movable member having a movable range as a terminal, the movable member is formed with a pressurizing portion for pressing the flat conductor, and the terminal is a flexible member having a contact portion extending in the front-rear direction. An elastic arm portion, a support arm portion positioned opposite to the elastic arm portion with respect to the flat conductor, and a connecting portion connecting the support arm portion to the elastic arm portion, A support portion is formed at the tip portion of the arm portion to support the movable member movably between the open position and the closed position. The connection portion extends out of the housing, and a flat conductor is inserted into the movable member. In the state that is not done, the movable range end position from the intermediate position within the movable range The pressing portion is formed so as to have an interference amount with respect to the contact portion in the pressing direction to the flat conductor, and the interference amount takes a maximum value at a position before the end of the movable range. The movable range terminal position is smaller than the maximum value.

  When the movable member moves from the position where the interference amount is the maximum value to the closed position, the interference amount, in other words, the displacement amount of the contact portion of the terminal when the flat conductor is inserted is reduced. Is obtained. Even in the closed position, an interference amount (displacement amount) remains, so that a contact pressure between the flat conductor and the contact portion is ensured.

  When the movable member is at least in the open position, the restricting portion protruding toward the flat conductor is in contact with the surface of the flat conductor at a position corresponding to both ends in the width direction of the flat conductor outside the terminal arrangement range. Is preferably provided. In particular, when the flat conductor is extremely thin, the flat conductor may be bent and deformed upward at both ends in the width direction, and both end portions in the width direction may enter the gap between the movable member and the housing. In the present invention, the flat conductor can be prevented from entering between the movable member and the housing by pressing the flat conductor downward with the restricting portion.

  When the movable member is in the closed position, the pressurizing portion of the movable member is located in a range where the pressing portion of the movable member overlaps the contact portion of the terminal in the front-rear direction, and is located between the terminals in the terminal arrangement direction. When viewed in the pressurizing direction, it is preferable that the edge of the pressurizing portion surrounds the contact portion on both sides and the rear side. In this way, the edge of the pressure part surrounds the contact part to ensure a large contact area and ensure contact, especially when the flat conductor is extremely thin and the contact area is stable and reliable. Can do.

  The contact portion of the terminal has a protruding shape that protrudes toward the flat conductor, and with the flat conductor inserted, the pressing portion of the movable member is behind the top of the contact portion of the terminal in the front-rear direction. It is preferable to reach a position where the elastic displacement amount of the contact portion is maximized in the pressurizing direction when it is within the range of the rear edge located at the position.

  When the pressing part of the movable member reaches the position where the amount of elastic displacement of the contact part is maximized within the range of the rear edge of the contact part of the terminal in the front-rear direction, at the position of the top of the contact part in the same direction Compared to the case where the elastic displacement amount is maximized, the maximum displacement amount can be obtained early while ensuring a large maximum displacement amount of the contact portion. Therefore, it takes a long time until the movable member reaches the closed position until it decreases from the maximum displacement amount to the final displacement amount, and the change can be sensed, so that a large click feeling can be obtained with certainty.

  The plurality of terminals are composed of a first terminal and a second terminal having different shapes, and the contact portion of the first terminal and the contact portion of the second terminal are preferably displaced in the front-rear direction. . By shifting the contact portion of the first terminal and the contact portion of the second terminal in the front-rear direction, the corresponding circuit portion of the flat conductor can be provided largely in the terminal arrangement direction, and deviation in the terminal arrangement direction is allowed. it can. In addition, since the contact positions with respect to the flat conductor are distributed in the front-rear direction and the terminal arrangement direction, particularly when the flat conductor is extremely thin, the wavy amount of the flat conductor in both the front-rear direction and the terminal arrangement direction is allowed. Can be as small as possible. Therefore, it is possible to ensure a good contact state between the flat conductor and the terminal, and to prevent the circuit portion provided on the flat conductor film from being damaged.

  As described above, according to the present invention, when the movable member is moved from the open position to the end position of the movable range corresponding to the closed position with no flat conductor inserted, the terminal contacts before the end position. Since the amount of interference with the part has the maximum value and the amount of interference is smaller than this maximum value at the end position, when the movable member is moved toward the closed position after inserting the flat conductor, Although the amount of interference is smaller than the amount of interference due to the presence of the mold conductor, the pressing portion causes a displacement amount to the contact portion. This displacement amount becomes maximum at the position where the interference amount is maximum, and decreases at the closed position. Therefore, a click feeling can be obtained during this period, and the contact pressure of the flat conductor is ensured with the amount of displacement remaining in the closed position.

It is a perspective view showing the whole electric connector for flat type conductors concerning a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view at a terminal position of the flat conductor electric connector of FIG. 1 in a state where a flat conductor is not inserted, where (A) is when the movable member is in the open position, and (B) is when the movable member is When the movable member is in the intermediate position between the open position and the closed position, (C) shows a state when the movable member is in the closed position. It is a partially expanded perspective view which shows the part near the edge part of the electrical connector for flat type conductors of FIG. It is IV-IV sectional drawing of FIG.2 (C), and is sectional drawing in the position near the edge part of a connector. FIG. 2 is a longitudinal sectional view at a terminal position of the flat conductor electrical connector of FIG. 1 in a state in which the flat conductor is inserted. FIG. 4 (A) shows a state where the movable member is in the open position and FIG. When the movable member is in the intermediate position between the open position and the closed position, (C) shows a state when the movable member is in the closed position. It is the longitudinal cross-section in the terminal position of the electrical connector for flat type conductors which concerns on 2nd embodiment of this invention, Comprising: It is the figure which expanded and showed the vicinity of the contact part of a terminal, and the pressurization part of a movable member, A) shows a longitudinal section at the position of the first terminal, and (B) shows a longitudinal section at the position of the second terminal.

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

<First embodiment>
FIG. 1 is a perspective view showing the entire flat conductor electrical connector according to the present embodiment. 2 is a longitudinal sectional view at the terminal position of the flat conductor electrical connector of FIG. 1 in a state in which the flat conductor is not inserted, and FIG. B shows a state when the movable member is at an intermediate position between the open position and the closed position, and (C) shows a state when the movable member is at the closed position. FIG. 3 is a partially enlarged cross-sectional view showing a portion near the end of the flat conductor electrical connector of FIG.

  A flat conductor electrical connector 1 according to the present embodiment (hereinafter simply referred to as “connector 1”) is disposed on a circuit board (not shown) and is a flat conductor F (see FIG. 5) that is a COF. Is a connector for electrically connecting the flat conductor F and the circuit board by being inserted forward (to the right in FIG. 2). The thickness of the COF is generally about 0.046 mm. Unlike COF, FPC and FFC, which are flat conductors having a thickness larger than that of COF, are generally about 0.2 to 0.3 mm.

  The connector 1 has a substantially rectangular parallelepiped outer shape and is made of an electrical insulating material, for example, a synthetic resin housing 10, a plurality of metal terminals 20 arranged and held in the housing 10 at equal intervals, and the housing 10 and the plurality of terminals. 20, a movable member 30 made of an electrical insulating material, for example, made of synthetic resin, rotatably supported by 20, and a metal fixture 40 held by the housing 10 at both ends of the terminal 10 in the terminal arrangement direction. ing. The movable member 30 is movable between an open position that allows insertion of the flat conductor F and a closed position that presses the flat conductor F.

  Further, when the flat conductor F is inserted into the connector 1, the flat conductor F is connected to the terminals 20 at positions corresponding to the plurality of terminals 20 in the terminal arrangement direction (direction perpendicular to the paper surface in FIG. 2). A corresponding circuit portion is formed on the lower surface.

  As seen in FIGS. 1 and 2, the housing 10 includes a bottom wall 11, a front wall 12 extending upward at a front position in the flat conductor insertion direction on the bottom wall 11, and an upper portion of the front wall 12. From the bottom wall 11 at both end positions of the housing 10 in the terminal arrangement direction (direction corresponding to the width direction of the flat conductor). Side walls 14 (not shown in FIG. 2) are provided. A terminal holding groove 15 for holding the terminal 20 is formed in the housing 10 so as to extend back and forth at equal intervals in the terminal arrangement direction of the housing 10. The housing 10 forms an open space in which the rear part is opened upward and cut out in the terminal arrangement range.

  As shown in FIG. 2, the terminal holding groove 15 extends over the bottom wall 11, the front wall 12 and the top wall 13 of the housing 10, and is formed in a slit shape extending in a direction parallel to the paper surface. Has been. A holding hole portion 12A for holding a held portion 27 of the terminal 20 described later is formed in the lower portion of the front wall 12 so as to penetrate in the front-rear direction.

  As shown in FIGS. 1 and 3, the side wall 14 is formed with an accommodation recess 14 </ b> A that opens upward and rearward, and the end of the movable member 30 to be described later when the movable member 30 is in the closed position. The plate portion 34 is accommodated in the accommodating recess 14A. There are two wall portions that form the accommodating recess 14A and extend in the front-rear direction, and the wall portion located near the terminal arrangement range, which is one of them, is outside the range where the flat conductor F is inserted and outside that range. Are separated by a terminal arrangement direction. Further, the wall portion located on the side away from the terminal arrangement range which is the other forms an end wall 14 </ b> C of the housing 10. Further, the lower wall 14D of the housing recess 14A connecting the partition wall 14B and the end wall 14C has a slit-shaped fixing bracket holding groove 14E for holding the fixing bracket 40 opened forward at a position close to the end wall 14C. (See FIGS. 3 and 4).

  As shown in FIG. 2, the upper half of the housing 10 has an open space that communicates over the terminal arrangement range and is opened upward at the rear, and the lower half of the open space is flat from the rear. A receiving space 16 for receiving the conductor F is formed. As can be seen in FIG. 2, the front part of the receiving space 16 extends to a position below the upper wall 13. The upper half of the open space forms a movable member moving space 17 that allows the movable member 30 to move between the open position and the closed position.

  As shown in FIG. 2, the terminals 20 are made by, for example, punching while maintaining a flat surface of a metal plate, and are arranged in the housing 10 with a direction perpendicular to the plate surface as a terminal arrangement direction. The terminal 20 is attached to the terminal holding groove 15 of the housing 10 in the flat conductor insertion direction (rightward in FIG. 2).

  As shown in FIG. 2, the terminal 20 extends rearward along the upper wall 13 in the upper portion of the terminal holding groove 15 and extends in the shape of an arm toward the movable member moving space 17. And an extension arm portion 22 extending rearward along the bottom wall 11 at a lower portion of the terminal holding groove 15 and a rearward direction at an intermediate position between the support arm portion 21 and the extension arm portion 22 in the vertical direction. An elastic arm portion 23 that extends, a connecting portion 24 that extends in the vertical direction and connects the front ends of the support arm portion 21, the extended arm portion 22, and the elastic arm portion 23, and the rear end of the extended arm portion 22 to the outside of the housing 10. It has the connection part 25 extended. The terminal 20 has a held portion 27 extending rightward from the lower portion of the connecting portion 24.

  The support arm portion 21 has a concave rotation support portion 21 </ b> A that opens downward at the rear end portion located in the movable member moving space 17. As will be described later, the rotation support portion 21A accommodates a shaft portion 32 serving as a rotation center of the movable member 30, and when the movable member 30 rotates between an open position and a closed position, The shaft portion 32 is rotatably supported. As seen in FIG. 2, the rear end portion of the upper edge of the rotation support portion 21A is formed in a tapered shape that inclines downward as it goes rearward.

  The elastic arm portion 23 extends to an intermediate position of the extension arm portion 22 that is substantially the same position as the rotation support portion 21A of the support arm portion 21 in the front-rear direction, and the corresponding circuit portion on the lower surface of the flat conductor F A contact portion 23 </ b> A for contact is formed to protrude upward into the receiving space 16 at the rear end portion of the elastic arm portion 23. The top portion of the contact portion 23A is located in front of the rotational center of a shaft portion 32 of the movable member 30 described later in the front-rear direction.

  The lower edge of the connecting portion 25 is located slightly below the lower surface of the bottom wall 11 of the housing 10, and when the connector 1 is disposed on a circuit board (not shown), In contact with the corresponding circuit portion, solder connection with the corresponding circuit portion is possible. Further, the connecting portion 25 is formed with a fitting portion 25 </ b> A as a recess opening forward, at the front edge, so that the fitting portion 25 </ b> A is fitted to the rear end portion of the bottom wall 11 of the housing 10. It has become. The held portion 27 is formed with a held projection 27A that protrudes upward, and the held projection 27A bites into the inner wall surface of the holding hole portion 12A as will be described later. Yes.

  The movable member 30 functions as a pressurizing unit that presses the flat conductor F downward toward the contact portion 23 </ b> A of the terminal 20. As shown in FIG. 2A, the movable member 30 is opened so as to allow the insertion of the flat conductor F by opening the receiving space 16 of the housing 10 in a posture inclined forward with respect to the vertical direction. It is possible to rotate between the position and a closed position that increases the contact pressure of the flat conductor F with respect to the contact portion 23A of the terminal 20 in a posture extending in the front-rear direction as shown in FIG. Yes.

  As is often seen in FIG. 1, the movable member 30 has substantially the same dimensions as the housing 10 in the terminal arrangement direction and is formed to extend in the terminal arrangement direction. As shown in FIGS. 1 and 2A, the movable member 30 is a slit having a groove width slightly wider than the plate thickness of the terminal 20 at a position corresponding to the terminal 20 in the terminal arrangement direction. Is formed in the lower part at the open position. Therefore, as can be seen in FIG. 1, the lower portion of the movable member 30 is comb-shaped in the terminal arrangement range when viewed in the front-rear direction. As shown in FIG. 2, the groove portion 31 allows the terminal 20 to enter from the front side of the rotation support portion 21 </ b> A.

  Further, as shown in FIG. 2A, the pressurizing member 30 is formed with a protruding portion 30A that protrudes toward the inside of the groove portion 31 at a rearward position at the boundary position between the groove portion 31 and the other portion. ing. 2A, the rear surface of the protrusion 30A functions as a pressing surface that presses the flat conductor F downward together with the pressing portion 35 described later, as shown in FIG. 2C. . As seen in FIG. 2A, the front edge of the projecting portion 30A is formed in a tapered shape such that the projecting portion 30A tapers as it goes downward.

  As shown in FIG. 2, a shaft portion 32 is provided in an island shape in the groove portion 31 at a position near the lower end portion of the movable member 30, and the shaft portion 32 extends in the terminal arrangement direction of the groove portion 31. Opposing wall surfaces are connected to each other. As shown in FIG. 2A, the shaft portion 32 has a cross-sectional shape with a circular lower end portion cut out. Further, as shown in FIG. 1, the movable member 30 extends in the vertical direction at the same position as the partition wall 14B of the housing 10 in the terminal arrangement direction, and the partition wall is moved when the movable member 30 is brought to the closed position. An accommodation groove 33 for accommodating 14B is formed. A portion located between the two housing groove portions 33 in the terminal arrangement direction is formed as an operation portion, and both end portions located on the outer side in the terminal arrangement direction than the housing groove portion 33 are formed as end plate portions 34.

  Further, in the movable member 30 in the open position, the rear part of the portion located between the groove portions 31 in the terminal arrangement direction is connected to the flat conductor F when the movable member 30 is in the intermediate position and the closed position in the movable range. It is formed as a pressurizing part 35 that presses downward toward the contact part 23 </ b> A of the terminal 20. As shown in FIG. 2C, when the movable member 30 is in the closed position, the pressurizing portion 35 is positioned so as to have a range overlapping with the contact portion 23A of the terminal 20 in the front-rear direction. ing.

  As shown in FIG. 3, when the movable member 30 is in the open position at a portion located between the terminal holding groove 15 and the partition wall 14 </ b> B located on the outermost side of the terminal arrangement range. And a restricting portion 36 protruding downward. The restricting portion 36 is provided at a position corresponding to both ends in the width direction of the flat conductor F. When the restricting portion 36 comes into contact with the upper surface of the flat conductor F, the restricting portion 36 causes the flat conductor F to be in contact with the upper surface of the flat conductor F. It is possible to regulate by pressing down.

  2A, when the movable member 30 is in the open position, the lower surface of the restricting portion 36 extends in the horizontal direction. In the movable member 30, the lower surface of the portion other than the restricting portion 36 including the terminal arrangement range in the terminal arrangement direction is formed as a tapered surface that inclines upward toward the rear. Accordingly, since the front end of the flat conductor F is guided between the support arm portion 21 and the elastic arm portion 23 of the terminal 20 by the tapered surface, the flat conductor F can be smoothly inserted.

  When the flat member F is not inserted, when the movable member 30 is rotated in a movable range starting from the open position in FIG. 2A and ending in the closed position in FIG. From the intermediate position in the movable range toward the closed position, the pressing portion 35 of the movable member 30 has an interference amount with respect to the contact portion 23A of the terminal 20 in the vertical direction (the pressing direction of the flat conductor F). is doing. The pressurizing portion 35 of the movable member 30 is a corner portion 35A which is the portion farthest from the center of the shaft portion 32 in the pressurizing portion 35 at a position before the closed position in the movable range shown in FIG. Is brought to the lowest position, and as a result, the amount of interference takes a maximum value. The pressurizing unit 35 is brought above the position shown in FIG. 2B at the closed position shown in FIG. 2C. Therefore, the interference amount is smaller than the maximum value at the closed position. Remain as 2 (B) and 2 (C), the portion where the pressing portion 35 interferes with the contact portion 23A is indicated by a broken line. 2C, the contact portion 23A of the terminal 20 is accommodated in the groove portion 31 of the movable member 30 from below in the closed position.

  In the state where the flat conductor F is not inserted as described above, the pressing portion 35 interferes with the contact portion 23A in the vertical direction. However, as will be described later, the flat conductor F is inserted. In this state, the pressing part 35 presses the flat conductor F downward toward the contact part 23A, and the contact part 23A is displaced downward according to the amount of interference. That is, the greater the amount of interference, the greater the amount of displacement of the contact portion 23A.

  4 is a cross-sectional view of the connector 1 shown in FIG. 2C, taken along the line IV-IV, showing a cross section at a position near the end of the connector 1. FIG. FIG. 4 is a cross-sectional view of the connector 1 as viewed from above at the position of the contact portion 23A of the terminal 20 in the vertical direction. As seen in FIG. 4, when the movable member 30 is in the closed position, the groove 31 of the movable member 30 is seen from above, the edge forming the groove 31, in other words, the edge of the pressure part 35. The portion surrounds the contact portion 23A so as to form a U-shape in three directions on both sides (left and right in FIG. 4) and rear (downward in FIG. 4).

  The fixing bracket 40 is made by punching a metal plate. As shown in FIGS. 3 and 4, the fixing bracket 40 has a slit-shaped fixing bracket holding groove in the housing 10 in a posture in which the plate surface is perpendicular to the terminal arrangement direction. It is attached to 14E from the front. The connector 1 is fixed on the circuit board by soldering the lower edge of the fixing bracket 40 to the circuit board.

  The connector 1 having such a configuration is assembled as follows. First, from the rear of the housing 10 (left side in FIG. 2), the terminal 20 is press-fitted and attached to the terminal holding groove 15 of the housing 10 toward the front (right side in FIG. 2). In the terminal 20, the held portion 27 is press-fitted into the holding hole portion 12A so that the held projection portion 27A of the held portion 27 bites into the inner wall surface of the holding hole portion 12A and the connection portion 25 is fitted. The portion 25 </ b> A is held in the terminal holding groove 15 by being fitted to the rear end portion of the bottom wall 11 of the housing 10.

  Next, the rotation support portion 21A of the terminal 20 is entered from the front into the groove portion 31 of the movable member 30 while maintaining the movable member 30 in a posture extending in the vertical direction (vertical direction). The movable member 30 is disposed in the movable member moving space 17 so that the shaft portion 32 is accommodated in the rotation support portion 21A from below. When the rotation support portion 21A enters the groove 31, the lower end of the projecting portion 30A of the movable member 30 is located below the upper edge of the rotation support portion 21A. When it reaches the same position as the shaft portion 32 of the movable member 30 in the front-rear direction and is brought directly above the shaft portion 32, the front edge of the protruding portion 30A and the rear end of the rotation support portion 21A are tapered. Since the portions escape from each other, the protrusion 30A and the rotation support portion 21A do not interfere with each other. Then, after the shaft portion 32 is housed in the rotation support portion 21A in a state where the movable member 30 is maintained in the vertically extending posture, the fixing bracket 40 is inserted into the fixing bracket holding groove 14E of the housing 10 from the front. Press fit to install. As a result, the movable member 30 is attached to the housing 10 in a rotatable state, and the assembly of the connector 1 is completed.

  Hereinafter, the connection operation between the connector 1 and the flat conductor F will be described with reference to FIG. FIG. 5 is a longitudinal sectional view at the terminal position of the connector 1 of FIG. 1 in a state in which the flat conductor F is inserted. FIG. 5A is a view when the movable member 30 is in the open position and FIG. When the member 30 is in an intermediate position between the open position and the closed position, (C) shows a state when the movable member 30 is in the closed position.

  First, as shown in FIG. 5A, the movable member 30 is brought to the open position. Next, the flat conductor F is inserted into the receiving space 16 of the housing 10 from the rear to the front. As shown in FIG. 5A, the flat conductor F is between the support arm portion 21 and the elastic arm portion 23 of the terminal 20, and the front end of the flat conductor F is on the front wall 12 of the housing 10. It is inserted up to a normal position that contacts the rear surface.

  When the flat conductor F is a COF as in the present embodiment, the square conductor F may be inserted by being bent upward at both ends in the width direction because of its thinness. However, in the present embodiment, the restricting portions 36 are provided at positions corresponding to both ends in the width direction of the flat conductor F in the movable member 30, so that the restricting portions 36 move the both ends of the flat conductor F downward. The flat conductor F is prevented from entering between the movable member 30 and the partition wall 14 </ b> B of the housing 10 by being pressed and regulated.

  Next, the movable member 30 in the open position is rotated toward the closed position. In the middle of the rotation, the corner portion 35 </ b> A of the pressure portion 35 of the movable member 30 presses the flat conductor F downward toward the contact portion 23 </ b> A of the terminal 20. As a result, the elastic arm portion 23 is elastically deformed downward, and the contact portion 23A is also displaced downward. As shown in FIG. 5B, the movable member 30 is in a position before the closed position, and the corner portion 35A of the pressurizing portion 35 is brought to the lowest position in the movable range of the movable member 30. At this position, the displacement amount of the contact portion 23A becomes the maximum value.

  Further, the movable member 30 is rotated and brought to the closed position in FIG. In the present embodiment, the flat conductor F is a very thin COF, and undulates in the terminal arrangement direction due to its flexibility at the position shown in FIG. The position in (B) is smoothly overcome and brought to the closed position. In the closed position, the end plate portion 34 of the movable member 30 is accommodated in the accommodating recess 14 </ b> A of the housing 10, and the partition wall 14 </ b> B of the housing 10 is accommodated in the accommodating groove portion 33 of the movable member 30.

  When the movable member 30 is brought to the closed position, the amount of displacement of the contact portion 23A is reduced, so that a click feeling is obtained at this time. However, even in the closed position, the displacement of the contact portion 23A decreases, but remains, so that the contact pressure between the flat conductor F and the contact portion 23A is ensured. Further, when the flat conductor F is an extremely thin COF as in the present embodiment, the flat conductor F that has been elastically deformed and slightly waved during the rotation is substantially flat at the closed position. Since the amount of displacement of the contact portion 23A is not greatly reduced with respect to the amount of interference, a sufficient amount of displacement of the contact portion 23A and thus a sufficient contact pressure with the flat conductor F can be secured.

  Further, in the closed position, the contact portion 23A of the terminal 20 is surrounded by the groove portion 31 of the movable member 30 on both sides and the three sides on the rear side, so that the flat conductor F and the contact portion 23A In particular, even in the case of a very thin flat conductor such as the COF in this embodiment, the shape of the contact area is stable and the contact can be ensured.

  In the present embodiment, since the top of the contact portion 23A of the terminal 20 is located forward of the rotation center of the shaft portion 32 of the movable member 30, when the movable member 30 is in the closed position, the contact portion The rotational moment around the rotation center caused by the reaction force to the movable member 30 with respect to the pressing force received from the movable member 30 by the top of the flat conductor F is the direction in which the movable member 30 is maintained in the closed position. That is, it acts on the movable member 30 in the counterclockwise direction in FIG. Therefore, the movable member 30 is stably positioned at the closed position, the contact pressure between the flat conductor F and the contact portion 23A is stably maintained, and the contact reliability can be improved. As described above, the connection between the connector 1 and the flat conductor F is completed by bringing the movable member 30 to the closed position.

  In the present embodiment, the terminal is attached to the housing from the rear. However, the direction in which the terminal is attached is not limited to this. For example, the terminal may be attached from any of the front, upper, and lower sides.

<Second embodiment>
In this embodiment, two types of terminals are provided, and the respective contact portions are arranged so as to be shifted in the front-rear direction, so that a kind of terminal is provided and the contact portions of all the terminals are the same in the front-rear direction. This is different from the first embodiment arranged in the position.

  FIG. 6 is a longitudinal cross-sectional view at the terminal position of the connector according to the present embodiment, and is an enlarged view showing the vicinity of the contact portion of the terminal and the pressing portion of the movable member. FIG. 6A shows a longitudinal section at the first terminal 50 of one kind, and FIG. 6B shows a longitudinal section at the position of the second terminal 60 of the other kind. In FIG. 6, the movable member 30 is at an intermediate position in the movable range from the open position to the closed position, and the pressurizing portion 35 of the movable member 30 moves toward the rear edge of the second terminal 60 described later. The state when pressing is started is shown.

  The connector 1 according to the present embodiment includes the first terminals 50 and the second terminals 60 having different shapes as described above, and the first terminals 50 and the second terminals 60 are alternately arranged in the terminal arrangement direction. Has been. The first terminal 50 is attached to the terminal holding groove 15 of the housing 10 from the front, and the second terminal 60 is attached to the terminal holding groove 15 of the housing 10 from the rear. As shown in FIG. 6, the elastic arm portion 53 of the first terminal 50 extends rearward (leftward in FIG. 6) beyond the elastic arm portion 63 of the second terminal 60. The contact portion 53 </ b> A is located behind the contact portion 63 </ b> A of the elastic arm portion 63. Further, a rear edge of the contact portion 63A, that is, an edge portion located rearward of the top portion of the contact portion 63A in the front-rear direction is partially overlapped with the contact portion 53A in the front-rear direction. Further, the top portion of the contact portion 63 </ b> A of the second terminal 60 is located in front of the rotational center of the shaft portion 32 of the movable member 30 in the front-rear direction.

  In this way, the contact position with respect to the flat conductor F is distributed in the front-rear direction and the terminal arrangement direction by shifting the contact part 53A of the first terminal 50 and the contact part 63A of the second terminal 60 in the front-rear direction. In particular, when the flat conductor F is a COF as in the present embodiment, the amount of corrugation of the COF in both the front-rear direction and the terminal arrangement direction can be made as small as possible. Therefore, it is possible to ensure a good contact state between the COF and the terminals 50 and 60 and to prevent the circuit portion provided on the COF film from being damaged.

  The contact portions 53A and 63A have a protruding shape protruding upward, and the top portions of the contact portions 53A and 63A are located at the same height. The rear edge of the contact portion 63A, that is, the edge portion located rearward from the top of the contact portion 63A in the front-rear direction is inclined more gently than the rear edge of the contact portion 53A. It extends over a longer range than the trailing edge of 53A.

  As shown in FIGS. 6A and 6B, the flat conductor F was pressed from above toward the rear edge of the contact portion 63 </ b> A of the second terminal 60 by the pressing portion 35 of the movable member 30. At the same time, the flat conductor F is pressed from below by a reaction force by the top of the contact portion 53A of the first terminal 50, and is bent in a substantially crank shape. In the present embodiment, as described above, since the rear edge of the contact portion 63A is gently inclined, compared with the case where the inclination of the rear edge of the contact portion 63A is larger than the illustrated inclination, A portion where the flat conductor F is pressed at the rear edge (hereinafter referred to as “pressured portion”) is located above. Accordingly, the difference in the position in the vertical direction between the pressure-receiving portion at the rear edge of the contact portion 63A and the top portion of the contact portion 53A of the first terminal 50 is reduced accordingly. As a result, the angle at which the flat conductor F is bent becomes small, so that breakage of the circuit portion of the flat conductor F can be satisfactorily prevented.

  6A and 6B, the locus of the corner portion 35A of the pressurizing portion 35 in the movable range of the movable member 30 is indicated by a one-dot chain line. As shown in FIGS. 6A and 6B, the corner portion 35 </ b> A of the pressurizing portion 35 first has a contact portion of the first terminal 50 at the rear edge of the contact portion 63 </ b> A of the second terminal 60. After pressing the contact portion 63A via the flat conductor F at a portion not overlapping with 53A, the contact portion 63A is brought to the lowest position within the range of the rear edge of the contact portion 63A in the front-rear direction. In other words, the contact portion 63A has the maximum elastic displacement when the pressing portion 35 is within the range of the trailing edge.

  Therefore, in the present embodiment, when the elastic displacement amount is maximized at the top position of the contact portion in the front-rear direction, the maximum displacement amount of the contact portion 63A is secured while the maximum displacement amount is generated. You can get it early. As a result, the time until the movable member 30 is reduced from the maximum displacement amount to the final displacement amount becomes long until the movable member 30 reaches the closed position, and the change can be sensed, so that a large click feeling can be reliably obtained. .

  In the present embodiment, since the top of the contact portion 63A of the second terminal 60 is positioned forward of the rotation center of the shaft portion 32 of the movable member 30, when the movable member 30 is in the closed position, Similar to the embodiment, the rotational moment acts on the movable member 30 in the direction in which the movable member 30 is maintained in the closed position, that is, in the counterclockwise direction in FIG. Therefore, the movable member 30 is stably positioned at the closed position, the contact pressure between the flat conductor F and the contact portions 53A and 63A is stably maintained, and the contact reliability can be improved.

  In the present embodiment, the first terminal is attached to the housing from the front and the second terminal from the rear. However, the direction in which the terminal is attached is not limited to this, and the first terminal and the second terminal are, for example, the front It may be attached from either above or below.

DESCRIPTION OF SYMBOLS 1 Connector 30 Movable member 10 Housing 35 Pressurization part 16 Receiving space (receiving part) 36 Restriction part 20 Terminal 50 First terminal 21 Support arm part 53 Elastic arm part 21A Rotation support part (support part) 53A Contact part 23 Elastic arm Part 60 Second terminal 23A Contact part 63 Elastic arm part 24 Connection part 63A Contact part 25 Connection part

Claims (5)

A plurality of terminals having a contact portion for contact with a flat conductor inserted forward into a receiving portion of the housing and a connection portion for soldering to a circuit board outside the housing are made of a metal plate. In an electrical connector for a flat conductor that is made by maintaining a flat plate surface and is arranged and held in a terminal groove of the housing with the direction perpendicular to the plate surface as the arrangement direction,
There is a movable member that has a movable range with a movable range starting and ending at an open position where the receiving portion is opened and a flat conductor can be inserted and a closed position where the flat conductor after insertion is pressed against the contact portion of the terminal. The movable member has a pressurizing portion for pressing the flat conductor,
The terminal includes a flexible elastic arm portion extending in the front-rear direction and formed with a contact portion, a support arm portion positioned on the opposite side of the flat arm with respect to the flat conductor, and the elastic arm portion. A support portion for connecting the support arm portion, and a support portion for movably supporting the movable member between the open position and the closed position is formed at a tip portion of the support arm portion, and the connection portion is disposed outside the housing. Extended,
In the state in which the flat conductor is not inserted, the movable member is configured so that the pressurizing unit is in contact with the flat conductor in the direction of pressing from the intermediate position in the movable range toward the movable range end position. The amount of interference takes a maximum value at the position before the end of the movable range, and is smaller than the maximum value at the end of the movable range. An electrical connector for flat conductors.   When the movable member is at least in the open position, the restricting portion protruding toward the flat conductor is in contact with the surface of the flat conductor at a position corresponding to both ends in the width direction of the flat conductor outside the terminal arrangement range. The flat connector electrical connector according to claim 1, wherein the electrical connector is provided on the flat conductor.   When the movable member is in the closed position, the pressurizing portion of the movable member is located in a range where the pressing portion of the movable member overlaps the contact portion of the terminal in the front-rear direction, and is located between the terminals in the terminal arrangement direction. The flat connector electrical connector according to claim 1 or 2, wherein when viewed in the pressurizing direction, an edge portion of the pressurizing portion surrounds the contact portion on both sides and a rear side. .   The contact portion of the terminal has a protruding shape that protrudes toward the flat conductor, and with the flat conductor inserted, the pressing portion of the movable member is behind the top of the contact portion of the terminal in the front-rear direction. 4. The position according to claim 1, wherein the position reaches the position where the amount of elastic displacement of the contact portion is maximized in the pressurizing direction when within the range of the rear edge located at the position. Electrical connector for flat conductors.   The plurality of terminals include a first terminal and a second terminal having different shapes from each other, and the contact portion of the first terminal and the contact portion of the second terminal are shifted from each other in the front-rear direction. An electrical connector for a flat conductor according to any one of claims 1 to 4.

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