JP2017168272A - Electric connector for plane type conductor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector for a circuit board capable of maintaining an operation feeling close to a normal operation feeling in operating a movable member even if a cam part of a movable part is shaved as the movable member rotates.SOLUTION: In addition to a lower arm part 22, a terminal 20 has even an upper arm part 21 which is coupled to the lower arm part 22 by a coupling part 23 and extends forward and backward, and the upper arm part 21 has a pressure receiving part 24A, which receives force from a cam part 65 of the movable member 60 to be elastically displaced, on a front end side, and a press part 25A, which is elastically displaced downward according to the elastic displacement of the pressure receiving part 24A to press a plane type conductor F from above, on a rear end side. When the movable member 60 is at least in a moving stage, the movable member 60 having shifted downward from a normal position can abut on a bottom wall 15 in an up-down direction within a predetermined terminal absence range forming at least a part of a terminal absence range different fro the terminals 20, 30 in a terminal array direction.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electrical connector for a flat conductor that is arranged on a mounting surface of a circuit board and into which a flat conductor is inserted and removed.

  This type of flat conductor electrical connector is disclosed in Patent Document 1, for example. In the flat conductor electrical connector of Patent Document 1, a plurality of terminals are arranged and held in a housing, and an operation lever is rotatably supported by the housing. The operation lever can be rotated between an open position that allows insertion of the flat conductor into the housing facing forward and a closed position that increases the contact pressure of the flat conductor with respect to the terminal. A cam portion described later is provided at the same position as the terminal.

  The terminals are metal plate members in which a flat plate surface is maintained, arranged in a direction perpendicular to the plate surface, and a lower arm portion extending in the front-rear direction along the bottom wall of the housing, An upper arm portion extending in the front-rear direction along the upper wall, and a connecting portion for connecting the lower arm portion and the middle portion in the front-rear direction of the upper arm portion. The lower arm portion has a support portion that supports the cam portion of the operation lever from below in front of the connecting portion. The upper arm portion has a pressure receiving portion that can be elastically displaced upward by receiving a force from the cam portion of the operation lever in front of the connecting portion, and the pressure receiving portion is elastically displaced upward behind the connecting portion. Sometimes it has a contact arm that presses the flat conductor by elastically displacing it downward and contacts the flat conductor.

Patent No. 4992707

  In the connector of Patent Document 1, when the operation lever is rotated, each cam portion slides with respect to the terminal support portion during the rotation process. In general, since the operation lever is made of an electrical insulating material such as a synthetic resin, the strength of the operation lever is lower than that of the terminal that is a metal plate member, and the cam portion of the operation lever is moved while the operation lever is repeatedly operated. It will rub against the plate thickness surface of the terminal support. When the cam portion is scraped, the cam portion and thus the rotation center of the cam portion is shifted downward from the normal position according to the shaved amount. As a result, the trajectory of the cam portion in the turning process of the operation lever is different from the normal trajectory, and thus it is not possible to obtain an operation feeling such as a click feeling that should be originally obtained. There is a risk of misidentification of the position of the cradle or control lever.

  In view of such circumstances, the present invention can maintain an operation feeling close to a normal operation feeling for the operation of the movable member even when the cam portion of the movable member is scraped by the rotation of the movable member. It is an object to provide a flat conductor electrical connector.

  The electricity for a flat conductor according to the present invention is an electric connector for a flat conductor that is arranged on the mounting surface of a circuit board and in which the flat conductor is inserted and removed in the front-rear direction, which is one direction parallel to the mounting surface. And a housing formed by opening a receiving portion for receiving the flat conductor inserted forward, and a metal plate member that maintains a flat plate surface, with respect to the plate surface. Rotating between a plurality of terminals arranged and held in the housing with a perpendicular direction as a terminal arrangement direction, an open position where the flat conductor can be inserted into the housing, and a closed position which presses the flat conductor A movable member movable along with the housing, wherein the housing allows the movable member to move in front of the receiving portion, and the movable member is located at a position corresponding to the terminal in the terminal arrangement direction. The cam portion cooperates with the terminal.

  In such an electrical connector for a flat conductor, in the present invention, the plurality of terminals have a lower arm portion extending in the front-rear direction at a position on the bottom wall side of the housing. At least a part of the lower arm part has a support part on the front end side for supporting the cam part of the movable member from below, and at least a part of the plurality of terminals is the lower arm part. In addition, the upper arm portion is connected to the lower arm portion by a connecting portion at an intermediate position in the front-rear direction of the lower arm portion and extends in the front-rear direction at a position on the upper wall side of the housing. A pressure receiving portion that receives a force from the cam portion of the member and can be elastically displaced upward is elastically displaced toward the front end side and downward according to the elastic displacement of the pressure receiving portion, and the flat conductor is raised upward. Press to increase the contact pressure between the flat conductor and the terminal At the rear end side, and when the movable member is at least moving, in a predetermined terminal absence range that forms at least a part of the terminal absence range different from the position of the terminal in the terminal arrangement direction, The movable member shifted downward from the normal position can be brought into contact with the bottom wall in the vertical direction.

  In the present invention, when the movable member is displaced downward from the normal position by sliding the cam portion of the movable member with respect to the terminal, the movable member contacts the bottom wall of the housing in the vertical direction. By being in contact and supported by the bottom wall, lowering of the movable member by a predetermined amount or more is restricted, and further cam portion scraping is prevented. At this time, the predetermined amount is set to a dimension in the vertical direction so that the deviation of the locus of the cam portion (deviation from the normal locus) in the moving process of the movable member can be kept within an allowable range. About operation, the operation feeling close | similar to a regular operation feeling can be maintained.

  In the present invention, the bottom wall of the housing may have an upper surface in a predetermined terminal absence range located above an upper surface in a range other than the predetermined terminal absence range.

  In the present invention, the movable member may be such that the lower end of the movable member in the predetermined terminal absence range is located below the lower end of the cam portion.

  As described above, in the present invention, when the movable member is at least moving, the movable member and the bottom wall of the housing can be contacted in the vertical direction in the predetermined terminal absence range. The movable member is supported by the bottom wall of the housing in the absence of the predetermined terminal even when the movable member is displaced downward from the normal position due to the sliding of the cam portion with respect to the terminal. Is done. As a result, the lowering of the movable member is restricted, and the cam portion is prevented from being further scraped, so that the operation feeling close to the normal operation feeling can be maintained for the operation of the movable member.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole perspective view which showed the electrical connector for flat conductors which concerns on 1st embodiment of this invention with the flat conductor, and a part of housing was abbreviate | omitted and shown. (A) is the perspective view which looked at the one part terminal and shield board of the electrical connector for flat type conductors of FIG. 1 from the front, (B) is the contact of the contact piece of a shield board and ground terminal in (A). It is the perspective view which expanded and showed the part. It is a figure which shows the whole shield board, (A) is a perspective view, (B) is a side view, (C) is a front view. FIG. 2 is a cross-sectional view taken along a plane perpendicular to the vertical direction of the flat conductor electrical connector of FIG. It is a perspective sectional view in the field at right angles to the terminal arrangement direction of the housing of the flat conductor electric connector of Drawing 1, and shows the section in the position of the terminal slot in the terminal arrangement direction. It is sectional drawing in the surface at right angles to the terminal arrangement direction of the electrical connector for flat conductors when a movable member exists in an open position, (A) is a cross section in the position of a ground terminal, (B) is a signal terminal (C) shows a cross section at the position of the metal fitting, and (D) shows a cross section at an intermediate position between the ground terminal and the metal fitting. It is sectional drawing in the surface at right angles to the terminal arrangement direction of the flat conductor electrical connector when a movable member is in the turning process, (A) is a cross section in the position of a ground terminal, (B) is a signal. A cross section at the terminal position, (C) shows a cross section at the position of the metal fitting, and (D) shows a cross section at an intermediate position between the ground terminal and the metal fitting. FIG. 8 is a cross-sectional view taken along a plane perpendicular to the terminal arrangement direction of the flat conductor electrical connector when the movable member is further rotated from the rotation position of FIG. 7, and (A) is a cross-section at the position of the ground terminal. , (B) shows a cross section at the position of the signal terminal, (C) shows a cross section at the position of the metal fitting, and (D) shows a cross section at an intermediate position between the ground terminal and the metal fitting. It is sectional drawing in the surface at right angles to the terminal arrangement direction of the electrical connector for flat conductors when a movable member exists in a closed position, (A) is a cross section in the position of a ground terminal, (B) is a signal terminal (C) shows a cross section at the position of the metal fitting, and (D) shows a cross section at an intermediate position between the ground terminal and the metal fitting. It is the whole perspective view which showed the electric connector for flat conductors concerning a second embodiment with a flat conductor. It is sectional drawing in the surface at right angles to the terminal arrangement direction of the electrical connector for flat conductors when a movable member exists in an open position in 2nd embodiment, (A) is a cross section in the position of a 1st terminal , (B) shows a cross section at the position of the second terminal, (C) shows a cross section at the position of the metal fitting, and (D) shows a cross section at an intermediate position between the first terminal and the metal fitting. It is sectional drawing in the surface at right angles to the terminal arrangement direction of the electrical connector for flat conductors when a movable member is in the turning process in 2nd embodiment, (A) is in the position of a 1st terminal. Section, (B) shows a section at the position of the second terminal, (C) shows a section at the position of the metal fitting, and (D) shows a section at an intermediate position between the first terminal and the metal fitting. It is sectional drawing in a surface at right angles to the terminal arrangement direction of the electrical connector for flat conductors when a movable member exists in a closed position in 2nd embodiment, (A) is a cross section in the position of a 1st terminal , (B) shows a cross section at the position of the second terminal, (C) shows a cross section at the position of the metal fitting, and (D) shows a cross section at an intermediate position between the first terminal and the metal fitting.

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

<First embodiment>
FIG. 1 is an overall perspective view showing a flat conductor electrical connector 1 (hereinafter simply referred to as “connector 1”) according to the present embodiment together with a flat conductor F, and a part of a housing 10 described later is omitted. It shows. The connector 1 is arranged on a mounting surface of a circuit board (not shown), and the flat conductor F is inserted and removed in the front-rear direction which is one direction parallel to the mounting surface.

  The flat conductor F has a connecting portion with the connector 1 at its front end (upper right edge forming a portion closer to the connector 1 in FIG. 1), and extends rearward (lower left in FIG. 1). However, in the figure, the part up to the position immediately behind the connecting part is shown, and the illustration behind it is omitted. In the present embodiment, the flat conductor F has a connection portion formed by removing the coating on the lower surface of the front end portion and exposing a connection circuit portion (not shown). On the upper surface of the front end portion of the flat conductor, a reinforcing sheet F1 is applied to improve the strength when connected to the connector.

  In the connecting portion of the flat conductor F, a locked portion F2 is formed by notches on both side edges in the width direction. A claw-shaped locking portion 45A formed on the metal fitting 40 described later enters and locks into the notched locked portion F2, thereby contributing to prevention of the flat conductor F from coming off.

  The connector 1 includes a housing 10 that receives the flat conductor F from the rear, two types of terminals 20 and 30 (first terminal 20 and second terminal 30) and metal fittings 40 arranged and held in the housing 10, and a housing 10. It has a shield plate 50 as a shield member to be held, and a movable member 60 supported by the housing 10, the terminals 20, 30 and the metal fitting 40. As will be described later, the movable member 60 is between an open position (see FIG. 6) that allows the flat conductor F to be inserted into the housing 10 and a closed position (see FIG. 9) that presses the flat conductor F. It is supported so that it can move with rotation.

  The first terminal 20, the second terminal 30, and the metal fitting 40 held by the housing 10 constitute a metal plate member that maintains a flat plate surface, and are arranged in a direction perpendicular to the plate surface. In the present embodiment, the first terminal 20 is used as a ground terminal, the second terminal 30 is used as a signal terminal, and the metal fitting 40 is locked to the flat conductor F to prevent the flat conductor F from coming off. Used as a locking member. In the present embodiment, the first terminal 20 and the second terminal 30 are arranged so that the two second terminals 30 are positioned between the adjacent first terminals 20. One metal fitting 40 is arranged on each side of the terminal arrangement range. The shapes of the first terminal 20, the second terminal 30, and the metal fitting 40 will be described in detail later.

  The housing 10 is formed by molding an electrically insulating material, has a substantially rectangular parallelepiped outer shape that is long in the width direction of the flat conductor F and relatively small in height, and penetrates in the front-rear direction. The slit-shaped first terminal grooves 11 and second terminal grooves 12 are arrayed in the width direction (see also FIGS. 6A and 6B). In the two types of the first terminal groove 11 and the second terminal groove 12, a first terminal 20 and a second terminal 30 which will be described later are respectively inserted and held correspondingly, and the width direction is defined as a terminal arrangement direction. The terminal array range is formed. Outside the arrangement range of the terminals, a metal groove 13 for holding the metal fitting 40 is formed in the same slit shape as the first and second terminal grooves 11 and 12 so as to penetrate in the front-rear direction (see FIG. 6 (C)).

  As described above, the first terminal 20, the second terminal 30, and the metal fitting 40 are made while maintaining the flat plate surface of the metal plate. The terminal groove 12 and the metal groove 13 are also formed so that the groove width in the terminal arrangement direction is substantially equal to the plate thickness of each of the first terminal 20, the second terminal 30 and the metal part 40, and the terminal arrangement direction (FIG. In (B) and (C), the groove width is defined as a direction perpendicular to the paper surface.

  The first terminal groove 11, the second terminal groove 12 and the metal fitting groove 13 are formed between the upper wall 14 and the bottom wall 15 of the housing 10 as seen in FIGS. 6 (A), (B) and (C), respectively. In the front-rear direction (right and left in the figure), it penetrates. The first terminal groove 11, the second terminal groove 12, and the metal fitting groove 13 communicate with each other such that rear portions thereof extend in the terminal arrangement direction (perpendicular to the plane of FIG. 6) at the center position in the vertical direction of the connector 1. A receiving portion 16 that is communicated by a groove and opens rearward is formed, and the connecting portion of the flat conductor F described above can be introduced into the receiving portion 16. Thus, as can be seen in FIGS. 6A and 6C, the first terminal groove 11 and the metal fitting groove 13 are separated from each other in the upper and lower portions by the receiving portion 16 to form the lower surface of the upper wall 14. The first terminal upper groove 11A and the first terminal lower groove 11B, the metal upper groove 13A and the metal lower groove 13B are formed on the upper surface of the bottom wall 15, respectively. 6B, the second terminal groove 12 is formed only on the upper surface of the bottom wall 15, and is not formed on the lower surface of the upper wall 14. As shown in FIG.

  The first terminal groove 11, the second terminal groove 12, and the metal fitting groove 13 communicate with each other at their front portions. That is, the front portions of the first terminal groove 11, the second terminal groove 12, and the metal groove 13 are positioned forward of the receiving portion 16 and above the bottom wall 15 of the housing 10. (See also FIG. 5). Therefore, the upper wall 14 is notched at the front portion, and the open space 17 allows the movable member 60 to be disposed and moved with its rotation. As shown in FIG. 6C, the upper wall 14 has a cutout portion at the rear portion at the positions of the metal fitting grooves 13 on both ends in the terminal arrangement direction. Sufficient elastic displacement above the corresponding portion is possible.

  The first terminal groove 11, the second terminal groove 12, and the metal fitting groove 13 have a first terminal 20 within an intermediate range between the front open space 17 and the rear receiving portion 16 in the front-rear direction. Mounting portions 18A, 18B and 18C for mounting the second terminal 30 and the metal fitting 40 to the housing 10 are provided, respectively. As shown in FIG. 6A, the mounting portion 18A is formed in an island shape between the top wall 14 and the bottom wall 15 in the vertical direction in the rear range in the intermediate range. As shown in FIG. 6B, the attachment portion 18B is formed by the lower surface of the upper wall 14 projecting over the entire intermediate range. As shown in FIG. 6C, the attachment portion 18C is formed in an island shape between the top wall 14 and the bottom wall 15 in the vertical direction in the front range in the intermediate range.

  The upper wall 14 has a shield plate holding groove 14A for holding the shield plate 50 in the front in a range including two second terminals 30 located between the first terminals 20 in the terminal arrangement direction and adjacent to each other. An opening is formed. The shield plate holding groove 14A has a slit shape extending in a direction perpendicular to the vertical direction, and is formed over almost the entire area in the front-rear direction, as is often seen in FIG. And the rear end is closed. The shield plate holding groove 14 </ b> A is positioned within the range of the first terminal upper groove 11 </ b> A of the first terminal groove 11 and the metal upper groove 13 </ b> A of the metal groove 13 in the vertical direction. When the shield plate 50 is press-fitted into the shield plate holding groove 14A from the front, the shield plate 50 is positioned so as to cover the two second terminals from above.

  As shown in FIGS. 6B and 6C, the second terminal 30 and the metal fitting 40 are fixed to the portion of the bottom wall 15 corresponding to the second terminal groove 12 and the metal groove 13 in the terminal arrangement direction. The fixed portions 15A and 15B are formed. The fixing portion 15A in the second terminal groove 12 is formed with a taper portion at the front end portion of the bottom wall 15, and the fixing portion 15B in the metal fitting groove 13 has a taper portion at the rear end portion of the bottom wall 15. Is formed.

  Further, as seen in FIG. 5, the bottom wall 15 is a front portion located in the range of the open space 17 in a range where the first terminal 20, the second terminal 30 and the metal fitting 40 are located in the terminal arrangement direction ( Hereinafter, a restricting portion 15C that protrudes from the terminal arrangement range and extends in the front-rear direction is formed in a range (hereinafter referred to as “terminal absence range”) that is different from the “terminal arrangement range”. As will be described later, when the movable member 60 is displaced downward from the normal position due to the shaving of the cam portion of the movable member 60, the restricting portion 15C comes into contact with the movable member 60 from below, and It is designed to regulate the decline beyond the fixed amount.

  In the present embodiment, the restricting portion 15C has a height dimension (the bottom in the terminal arrangement range described above) that can keep the deviation of the locus of the cam portion (deviation from the normal locus) during the rotation of the movable member 60 within an allowable range. (Height dimension from the upper surface of the wall 15), and the height dimension is appropriately set according to the product. For example, if the height dimension of the restricting portion 15C is set to be large, the maximum descending amount of the movable member 60 can be reduced accordingly. Here, the above-mentioned “allowable range” refers to a click feeling that occurs during the rotation process of the movable member 60, the contact pressure between the terminal and the flat conductor that occurs at the closed position of the movable member 60, The range which can fully obtain the amount of latching etc. is said.

  In the present embodiment, the restricting portion 15C is formed in the entire terminal absence range in the terminal arrangement direction. Instead, the restricting portion 15C is a part of the terminal absent range. It is good also as being formed in the terminal absence range.

  The first terminal 20 as a ground terminal, the second terminal 30 as a signal terminal, and the metal fitting 40 as a lock member are inserted and held in the first terminal groove 11, the second terminal groove 12 and the metal fitting groove 13, respectively. All are made while maintaining the flat plate surface of the metal plate. As shown in FIGS. 6A and 6C, the first terminal 20 and the metal fitting 40 have a substantially horizontal H shape, and the upper arm portions 21 and 41 positioned above and the lower arms positioned below the upper arm portions 21 and 41. It has arm parts 22 and 42, and both are connected by connecting parts 23 and 43 located in the middle part in the front-rear direction. On the other hand, the second terminal 30 has an arm shape extending in the front-rear direction along the bottom wall 15 of the housing 10 in the second terminal groove 12.

  As can be seen from FIG. 6A, the first terminal 20 has an upper arm portion 21 extending substantially over the entire area of the housing 10 in the front-rear direction. The upper arm portion 21 has a pressure receiving arm portion 24 at the front portion of the connecting portion 23 and a pressing arm portion 25 at the rear portion. A concave pressure receiving portion 24A is formed at the lower edge of the pressure receiving arm portion 24, and a pressing portion 25A protruding downward is provided at the rear end of the pressing arm portion 25. The pressure receiving portion 24A has a substantially semicircular concave shape, and also functions as a guide portion for rotating and guiding a first cam portion 65 of the movable member 60 described later. As will be described later, when the pressure receiving portion 24A receives an upward force from the first cam portion 65 of the movable member 60, the upper arm portion 21 has the lever principle and uses the position of the connecting portion 23 as a fulcrum. The pressing arm portion 25 is bent downward and inclined.

  The lower arm portion 22 of the first terminal 20 has a rear portion extending in the front-rear direction to the same position as the pressing portion 25 </ b> A of the upper arm portion 21, and a front portion is forward of the pressure receiving arm portion 24 of the upper arm portion 21. The front end thereof extends and protrudes out of the housing 10. The lower arm portion 22 has a support arm portion 26 in order to support a later-described first cam portion 65 of the movable member 60 from below, and a rear portion of the lower arm portion 22 has a flexible contact arm portion 27. There is no. The support arm portion 26 includes a connection portion 26A that protrudes forward from the housing 10 and a raised portion 26B that protrudes upward in a mountain shape at a position close to the coupling portion 23 in the front-rear direction. . The raised portion 26B is higher in the second half than in the first half. As will be described later, the protruding portions 26B are configured such that the contact pieces 52 and 53 of the shield plate 50 come into contact with the upper end surface (plate thickness surface) of the protruding portions 26B. Further, the contact arm portion 27 protrudes upward at the rear end position and opposes the contact portion 27A facing the pressing portion 25A of the upper arm portion 21, and a press-fit protrusion that protrudes upward at a position close to the connecting portion 23 in the front-rear direction. Part 27B.

  The connecting portion 26A extends downward so as to have a lower edge located slightly below the bottom surface of the bottom wall 15 of the housing 10, and the lower edge is in contact with the corresponding circuit surface with the circuit board and soldered. Is possible.

  The contact arm portion 27 is inclined upward toward the rear to form a gap that gradually expands with the bottom wall 15 of the housing 10. The pressing portion 25A of the upper arm portion 21 and the contact portion 27A of the lower arm portion 22 that are opposed to each other in the vertical direction sandwich the flat conductor F (not shown), and are formed on the lower surface of the flat conductor F. It contacts the circuit part and is electrically connected to the ground circuit part.

  The first terminal 20 thus formed is inserted into the first terminal groove 11 from the front to the rear. When inserted to a predetermined position, the contact arm portion 27 penetrates between the bottom wall 15 of the housing 10 and the island-shaped attachment portion 18A, and the press-fitting protrusion 27B is fixed by biting into the lower edge of the attachment portion 18A. Thus, the first terminal 20 is prevented from coming off.

  As shown in FIG. 6B, the second terminal 30 extends over the entire area of the housing 10 in the front-rear direction, its front end protrudes outside the housing 10, and its rear end is below the first terminal 20. It is located at substantially the same position as the rear end of the arm portion 22. The front portion of the second terminal 30 forms a support arm portion 36, and the rear portion forms a flexible contact arm portion 37. The support arm portion 36 protrudes outward from the housing toward the front and a second cam portion 66 (described later) of the movable member 60 from the lower side by protruding upward in a rectangular shape at the position of the open space 17 in the front-rear direction. And a cam support portion 36B for supporting. The contact arm portion 37 has a contact portion 37A that protrudes upward at the rear end position. The contact portion 37A is in contact with a signal circuit portion formed on the lower surface of a flat conductor F (not shown) and is electrically connected to the signal circuit portion. A press-fitting protrusion 38 that protrudes upward is formed at an intermediate portion located between the support arm portion 36 and the contact arm portion 37.

  The cam support portion 36B has an upper edge located substantially at the same height as the lower edge of the mounting portion 18B of the housing 10, and forms a cam contact portion 36B-1 that forms a straight edge extending in the front-rear direction. Yes. The cam contact portion 36B-1 is formed in a range extending in the front-rear direction and in the front-rear direction than the pressure receiving portion 24A of the first terminal 20.

  The connecting portion 36A extends downward so as to have a lower edge located slightly below the bottom surface of the bottom wall 15 of the housing 10, and the lower edge is in contact with the corresponding circuit surface with the circuit board and soldered. Is possible. The connecting portion 36A is formed with a notched groove-like fixed portion 36A-1 on the rear edge side, and the fixed portion 36A-1 is a tapered shape formed on the bottom wall 15 of the housing 10 described above. The second terminal 30 is pressed into the fixing portion 15 </ b> A and plays a role in fixing the second terminal 30 to the housing 10.

  The second terminal 30 formed in this way is inserted into the second terminal groove 12 from the front to the rear. When inserted to a predetermined position, the contact arm portion 37 penetrates between the bottom wall 15 of the housing 10 and the mounting portion 18B, the press-fitting protrusion 38 bites into the lower edge of the mounting portion 18B, and the fixed portion 36A. -1 is fixed by being fitted into the fixing portion 15A of the bottom wall 15 of the housing 10, and the second terminal 30 is prevented from coming off.

  As shown in FIG. 6C, the metal arm 40 has the upper arm portion 41 extending substantially over the entire area of the housing 10 in the front-rear direction. The upper arm portion 41 has a pressure receiving arm portion 44 at a front portion of the connecting portion 43 and a locking arm portion 45 for locking the flat conductor F at a rear portion thereof. A locking portion 45A that protrudes downward is provided at the rear end of the locking arm portion 45. When the pressure receiving arm portion 44 receives an upward force from a third cam portion 67 (described later) of the movable member 60, the upper arm portion 41 is based on the lever principle and uses the position of the connecting portion 43 as a fulcrum for the locking arm portion 45. Is bent downward and inclined.

  The lower arm portion 42 of the metal fitting 40 has a front portion extending forward from the pressure receiving arm portion 44 of the upper arm portion 41, a rear portion extending rearward from the locking portion 45A in the front-rear direction, and a rear end thereof being outside the housing. Protruding. The lower arm portion 42 has a support arm portion 46 at a front portion of the connecting portion 43 to support a later-described third cam portion 67 of the movable member 60 from below, and a rear portion thereof directly along the upper surface of the bottom wall 15. A straight arm portion 47 extending in a shape is formed. The support arm portion 46 is larger in height than the straight arm portion 47, and the upper edge of the support arm portion 46 is located above the upper edge of the straight arm portion 47. The support arm portion 46 has a press-fit protrusion 46A that protrudes upward at a position close to the connecting portion 43 in the front-rear direction. The straight arm portion 47 has a solder fixing portion 47 </ b> A that protrudes rearward from the housing 10.

  The solder fixing portion 47A extends and bends downward so as to have a lower edge located slightly below the bottom surface of the bottom wall 15 of the housing 10, and the lower edge is in contact with the corresponding surface with the circuit board. Solder connection is possible. The solder fixing portion 47A is formed with a notched groove-like fixed portion 47A-1 on the rear edge side, and the fixed portion 47A-1 is a tapered shape formed on the bottom wall 15 of the housing 10 described above. The fixing portion 15B is press-fitted and plays a role in fixing the metal fitting 40 to the housing 10.

  The metal fitting 40 formed in this way is inserted into the metal fitting groove 13 from the rear to the front. When inserted to a predetermined position, the support arm portion 46 penetrates between the bottom wall 15 of the housing 10 and the island-shaped attachment portion 18C, and the press-fit protrusion 46A bites into the lower edge of the attachment portion 18C, and The fixing portion 47A-1 is fixed by being fitted into the fixing portion 15B of the bottom wall 15 of the housing 10, and the metal fitting 40 is prevented from coming off.

  The shield plate 50 is made by bending a metal plate member, and as shown in FIG. 1, is provided between the first terminals 20 adjacent to each other in the terminal arrangement direction (FIG. 2A). ) And FIG. 4). As shown in FIGS. 3A to 3C, the shield plate 50 includes a main body 51 having a plate surface perpendicular to the vertical direction, and both side edges of the main body 51 (front-rear direction (FIG. 3 (B), the front contact piece 52 and the rear contact piece 53 extending in a substantially L shape and flexible in the vertical direction.

  As is often seen in FIG. 4, the main body 51 has a substantially rectangular shape with the front-rear direction as the longitudinal direction when viewed from above, and extends in a range covering almost the entire area of the housing 10 in the front-rear direction. In the terminal arrangement direction, it extends in a range including two adjacent second terminals 30. As can be seen in FIGS. 3A and 4, the main body 51 has a front half (the lower half in FIG. 3A and the upper half in FIG. 4) from the latter half. Also, the width is narrow in the terminal arrangement direction, and a notch 51A is formed at the front end edge, and front end pieces 51B are formed on both sides of the notch 51A. As shown in FIG. 4 (A), the shield plate 50 has the front end piece 51B entering a second groove 63 (described later) of the movable member 60 from the rear (see also FIG. 6 (B)). The notch 51A receives the partition wall 68 between the second groove portions 63 from the front, thereby avoiding interference with the movable member 60. A plurality of press-fitting protrusions 51 </ b> C for press-fitting into the shield plate holding groove 14 </ b> A of the housing 10 are formed on the side edge of the rear half of the main body 51.

  As shown in FIGS. 3A to 3C, the front contact piece 52 extends at an intermediate position in the front-rear direction of the main body 51 so as to incline downward from one side edge of the main body 51 toward the front. It has an elastic arm portion 52A that can be elastically displaced in the vertical direction, and a front contact portion 52B that extends outward (in a direction away from the main body portion 51) in the terminal arrangement direction from the front end of the elastic arm portion 52A. The rear contact piece 53 extends from the other side edge of the main body 51 at a position behind the front contact piece 52 of the main body 51. Similar to the front contact piece 52, the rear contact piece 53 extends in a downwardly inclined manner toward the front, and is elastically displaceable in the vertical direction, and from the front end of the elastic arm portion 53A in the terminal arrangement direction. A rear contact portion 53 </ b> B extending outward (in a direction away from the main body portion 51). The size of the rear contact piece 53 itself is substantially the same as the size of the front contact piece 52, and as can be seen in FIGS. 3A and 3B, the rear contact portion 53B of the rear contact piece 53 is the front contact portion 52B. It is located behind. Further, as seen in FIG. 3C, the rear contact portion 53B is located slightly above the front contact portion 52B.

  As seen in FIGS. 1, 2, and 4, one first terminal 20 as a ground terminal is provided between two shield plates 50 adjacent in the terminal arrangement direction when viewed from above. 2A and 2B, the front contact portion 52B of the front contact piece 52 of one shield plate 50 and the rear contact portion 53B of the rear contact piece 53 of the other shield plate 50 are the first One terminal 20 is brought into contact. Specifically, as often seen in FIG. 2 (B), the upper end surface (plate thickness) of the front half of the raised portion 26B formed on the lower arm portion 22 (see FIG. 2 (A)) of the first terminal 20. The front contact portion 52B of one shield plate 50 is in elastic contact with the upper surface (plate thickness surface) of the raised portion 26B, and the rear contact portion 53B of the other shield plate 50 is in elastic contact. As a result, all the shield plates 50 and all the first terminals 20 are electrically connected, and a good shielding effect can be obtained in the entire connector.

  As shown in FIG. 4, the shield plate 50 is press-fitted into the shield plate holding groove 14A of the upper wall 14 of the housing 10 from the front (upward in FIG. 4), and the press-fit protrusion 51C of the shield plate 50 holds the shield plate. The groove 14A is attached to the housing 10 by biting into the opposing inner wall surface (inner wall surface facing in the terminal arrangement direction) of the groove 14A. The shield plate 50 attached to the housing 10 is positioned so as to cover the two second terminals 30 from above, and as described above, as a ground terminal adjacent to the shield plate 50 on both sides of the shield plate 50. The first terminal 20 is electrically conductive by directly elastically contacting the upper end surface of the raised portion 26B of the first terminal 20 at the front contact portion 52B or the rear contact portion 53B.

  In the present embodiment, the shield plate 50 is positioned within the upper arm portion 21 of the first terminal 20 in the vertical direction. That is, as compared with the conventional connector in which the shield member is positioned above the upper arm portion of the terminal, the shield plate 50 overlaps with the upper arm portion 21 of the first terminal 20, that is, the plate of the shield plate 50. The height dimension of the connector 1 can be reduced by the thickness. Further, since the shield plate 50 is in contact with the first terminal 20 used as the ground terminal, a good shielding effect can be obtained.

  As shown in FIG. 1, the movable member 60 is made of an electric insulating material similar to that of the housing 10 as a member extending over almost the entire width of the housing 10.

  The movable member 60 is supported so as to be rotatable between an open position seen in FIG. 6 and an intermediate position seen in FIGS. 7 and 8 to a closed position seen in FIG. In FIG. 6, the rotation axis of the movable member 60 is located in the lower half portion of the movable member 60, and the lower half portion is accommodated in the open space 17 formed in the front portion of the housing 10. In FIG. 6, an upper half portion outside the open space 17 and projecting upward from the upper wall 14 of the housing 10 is an operation portion 61 for a user to rotate the movable member 60. It has become.

  In the lower half of the movable member 60 in FIG. 6, the first terminal 20, the second terminal 30, and the metal fitting 40 in the width direction of the movable member 60 (in the terminal arrangement direction and perpendicular to the paper surface in FIG. 6). The slit-shaped first groove 62 and the second groove 63 permitting the pressure receiving arm 24, the front end piece 51B, and the pressure receiving arm 44 to enter the first terminal 20, the shield plate 50, and the metal fitting 40, respectively. And the 3rd groove part 64 is penetrated and formed in the front and back. Accordingly, the groove widths of the first groove portion 62, the second groove portion 63, and the third groove portion 64 (the width between the groove inner surfaces in the direction perpendicular to the paper surface) are respectively the thickness of the first terminal 20 and the shield plate 50. The size is slightly larger than the width of the front end piece 51B and the thickness of the metal fitting 40. The first groove portion 62, the second groove portion 63, and the third groove portion 64 are provided with a first cam portion 65, a second cam portion 66, and a third cam portion 67 that connect the groove inner surfaces.

  The first cam portion 65 provided in the first groove portion 62 corresponding to the first terminal 20 in the terminal arrangement direction is a lower portion of the first groove portion 62 of the movable member 60 in the open position as seen in FIG. It is provided at a position, and is positioned between the pressure receiving arm portion 24 and the support arm portion 26 of the first terminal 20 in the vertical direction. When the movable member 60 is in the open position, the first cam portion 65 has an elongated shape in which a cross section perpendicular to the terminal arrangement direction extends in the front-rear direction as a whole, and the support arm portion of the first terminal 20 26 with a gap in the vertical direction between the upper edge of 26.

  The second half of the first cam portion 65 (the left half in FIG. 6A) is a guided portion 65A that is pivotally guided by the pressure receiving portion 24A of the first terminal 20 during the pivoting process of the movable member 60. The first half portion (the right half portion in FIG. 6A) is formed as a supported portion 65B supported from below by the support arm portion 26 of the first terminal 20 in the turning process and in the closed position. Yes. The guided portion 65A has an arc shape whose rear edge that is in sliding contact with the pressure receiving portion 24A is adapted to the pressure receiving portion 24A. The guided portion 65A extends forward from the lower front edge of the guided portion 65A, and the front end edge directly supported by the support arm portion 26 in the turning process and in the closed position forms an arc shape. ing. The rotation center of the first cam portion 65 is located in the region of the guided portion 65A when viewed in the terminal arrangement direction (direction perpendicular to the paper surface in FIG. 6A), and is a movable member. By rotating 60, the pressure receiving arm portion 24 of the first terminal 20 moves up and down elastically, but the left and right are restricted by the front and rear edges of the concave pressure receiving portion 24A and do not move.

  The second cam portion 66 provided in the second groove portion 63 corresponding to the second terminal 30 in the terminal arrangement direction is a lower portion of the second groove portion 63 of the movable member 60 in the open position as seen in FIG. It is provided at a position, and is positioned between the front end piece 51B of the shield plate 50 and the support arm portion 36 of the second terminal 30 in the vertical direction. When the movable member 60 is in the open position, the second cam portion 66 has a substantially square cross section perpendicular to the terminal arrangement direction, and the second cam portion 66 has a straight lower edge. Is supported from below by the upper edge of the support arm portion 36 of the second terminal 30. In addition, the lower front edge of the second cam portion 66 is a portion that is supported while being in sliding contact with the upper edge of the support arm portion 36 during the rotation of the movable member 60, and has an arc shape. Further, the rear edge of the upper portion of the second cam portion 66 is chamfered to form a beveled edge, so that interference with the front end piece 51B of the shield plate 50 can be avoided during the rotation of the movable member 60. Yes. Further, the front edge of the second cam portion 66 has a straight shape extending in the vertical direction. When the movable member 60 is brought to the closed position, it is extended in the front-rear direction and is lowered by the support arm portion 36. (See FIG. 9B).

  The third cam portion 67 provided in the third groove portion 64 corresponding to the metal fitting 40 in the terminal arrangement direction is located at the lower position of the third groove portion 64 of the movable member 60 in the open position as seen in FIG. It is provided and is positioned between the pressure receiving arm portion 44 and the support arm portion 46 of the metal fitting 40 in the vertical direction. When the movable member 60 is in the open position, the third cam portion 67 has a shape in which a cross section perpendicular to the terminal arrangement direction extends in the front-rear direction as a whole. The third cam portion 67 is inclined upward as the lower front edge is directed forward, and is inclined upward as the lower rear edge is directed rearward. A transition portion between the lower front edge and the lower rear edge ( The lower edge of the boundary portion forms a protruding edge that protrudes downward. The third cam portion 67 is supported on the support arm portion 46 from below by the protruding edge at the open position.

  Further, an edge projecting rearward at the upper portion of the third cam portion 67 has an arc shape, and comes into sliding contact with the pressure receiving arm portion 44 during the turning process of the movable member 60 (FIG. 7 ( C), 8 (C)). Further, the front edge of the third cam portion 67 has a straight shape extending in the vertical direction. When the movable member 60 is brought to the closed position, it is extended in the front-rear direction and is lowered by the support arm portion 46. (See FIG. 9C).

  When the movable member 60 is in the open position, the lower surface of the movable member 60 is in the restricting portion 15C of the bottom wall 15 of the housing 10 as shown in FIG. With a gap in the vertical direction.

  The connector 1 of this embodiment having such a configuration is used and functions in the following manner.

  First, the connector 1 is arranged at a predetermined position on a circuit board (not shown), and the connection part 26A of the first terminal 20, the connection part 36A of the second terminal 30, and the solder fixing part 47A of the metal fitting 40 are respectively provided on the circuit board. Connect and fix to the corresponding part of the solder.

  The connector 1 thus attached to the circuit board is brought to the open position where the movable member 60 is suspended as seen in FIG. 6, and the receiving portion 16 of the housing 10 is opened rearward (leftward in the figure). In this state, the flat conductor F can be inserted.

  Next, in a state where the movable member 60 is in the open position as seen in FIG. 6, the connecting portion (not shown) of the flat conductor F is inserted into the receiving portion 16 forward. In the first terminal 20, the space between the pressing portion 25 </ b> A of the pressing arm portion 25 and the contact portion 27 </ b> A of the contact arm portion 27 is slightly wider than the thickness of the connecting portion of the flat conductor F. The connecting portion of F is easily inserted. However, with respect to the metal fitting 40, the gap between the locking portion 45A of the locking arm portion 45 of the metal fitting 40 and the straight arm portion 47 is narrower than the thickness of the connecting portion of the flat conductor F. Therefore, the flat conductor F is lifted by elastically displacing the locking portion 45A at its front end and advanced to a predetermined position while widening the interval, and then the notched locked portion of the flat conductor F is obtained. The locking portion 45A enters F2 from above, whereby the flat conductor F is temporarily held.

  Even when the connecting portion of the flat conductor F is inserted as described above, the movable member 60 is in the open position, so that it is formed at the lower edge of the contact arm portion 27 that forms the rear half portion of the lower arm portion 22 of the first terminal 20. The contact portion 27 </ b> A is spaced from the bottom wall 15 of the housing 10 to form a gap.

  Next, the movable member 60 is rotated toward the closed position. When the movable member 60 starts to rotate from the open position, first, the second cam portion 66 comes into sliding contact with the support arm portion 36 of the second terminal 30. As a result of this sliding contact, the rotational center of the movable member 60 moves upward. As a result, the first cam portion 65 serves as the pressure receiving arm portion 24 of the first terminal 20, and the third cam portion 67 serves as the pressure receiving arm portion 44 of the metal fitting 40. Is pushed upward and displaced. The first cam portion 65 and the third cam portion 67 have a gap between the support arm portion 26 of the first terminal 20 and the support arm portion 46 of the metal fitting 40 immediately after the start of the rotation of the movable member 60. The support arm portions 26 and 46 are not slidably contacted. That is, all reaction forces acting downward from the pressure receiving arm portions 24, 44 to the cam portions 65, 67 are received only by the sliding contact portion between the second cam portion 66 and the support arm portion 36. It will be. Therefore, the second cam portion 66 and the support arm portion 36 are slidably contacted with each other under a large contact pressure, and the second cam portion 66 is likely to be scraped.

  When the rotation of the movable member 60 from the open position proceeds, as shown in FIG. 7, the first cam portion 65 contacts the support arm portion 26 and the third cam portion 67 contacts the support arm portion 46. In the subsequent rotation process, all the cam portions 65, 66, 67 come into sliding contact with the support arm portions 26, 36, 46. Accordingly, the reaction force acting downward from the pressure receiving arm portions 24, 44 to the cam portions 65, 67 is applied to the sliding contact portions between all the cam portions 65, 66, 67 and the support arm portions 26, 36, 46. Therefore, the contact pressure between the second cam portion 66 and the support arm portion 36 is reduced accordingly. In this turning process, the cam portions 65 and 67 further press the pressure receiving arm portions 24 and 44 upward.

  Further, as shown in FIG. 8, when the movable member 60 rotates and the cam portions 65 and 67 press the pressure receiving arm portions 24 and 44 further upward, the displacement amount of the pressure receiving arm portions 24 and 44 is increased. As a result, the pressing arm portion 25 of the first terminal 20 and the locking arm portion 45 of the metal fitting 40 are displaced downward with the maximum amount of displacement.

  When the movable member 60 is further rotated and brought into the closed position, as shown in FIG. 9, the cam portions 65, 66, and 67 are respectively at the lower edges (the front edges when in the open position). The movable member 60 is maintained in the closed position by being supported by the support arm portions 26, 36, and 46. At this time, the upward displacement amount of the pressure receiving arm portions 24 and 44 by being pressed by the cam portions 65 and 67 is reduced as compared with the state shown in FIG. According to such a configuration, a click feeling is obtained when the cam portions 65, 66, 67 exceed the rotation angle position shown in FIG. 8 during the rotation operation of the movable member 60 toward the closed position. Can do.

  As described above, when the movable member 60 is brought to the closed position, the pressing arm portion 25 of the first terminal 20 is displaced downward with a sufficient amount of displacement, and the flat conductor F (not shown) is moved by the pressing portion 25A. Press from above. As a result, the contact portions 27A and 37A of the contact arm portions 27 and 37 and the connection circuit portion on the lower surface of the flat conductor F come into contact with each other with sufficient contact pressure and are electrically connected. Further, the locking arm portion 45 of the metal fitting 40 is displaced downward with a sufficient displacement amount, and the locking portion 45A enters deeply into the locked portion F2 of the flat conductor F, so that a sufficient locking amount is obtained. The locked state with the front edge of the locked portion F2 is maintained, and the flat conductor F is reliably prevented from coming off.

  Further, as shown in FIGS. 6D, 7D, 8D, and 9D, the movable member 60 can be moved from the open position to the closed position as long as it is in the normal position. In any of the rotation angle positions, a gap is formed between the movable member 60 and the restricting portion 15C of the housing 10, and the movable member 60 does not slidably contact the restricting portion 15C.

  In the connector 1 of the present embodiment, every time the movable member 60 is rotated between the open position and the closed position, the cam portions 65, 66, and 67 of the movable member 60 made of an electrical insulating material are made of a metal plate. Since the sliding contact with the support arm portions 26 and 36 of the terminals 20 and 30 or the support arm portion 46 of the metal fitting 40 is repeated, the cam portions 65, 66 and 67 may be scraped as a result. In particular, between the open position shown in FIG. 6 and the rotational rotation position shown in FIG. 7, the contact pressure between the second cam portion 66 and the support arm portion 36 of the second terminal 30 is as described above. Since it becomes large, the second cam portion 66 is likely to be scraped.

  When the cam portions 65, 66, and 67 are scraped in this way, the cam portions 65, 66, and 67 are shifted downward from the normal positions according to the shaved amount. If the displacement of the movable member 60 from the normal position is excessive, the trajectories of the cam portions 65, 66, 67 in the turning process of the movable member 60 are different from the normal trajectories. An operation feeling such as a click feeling that should be obtained cannot be obtained, and for example, it may be difficult to operate the movable member 60 or misidentify the position of the movable member 60. Furthermore, in the closed position, the amount of elastic displacement of the pressing arm portion 25 of the terminal 20 becomes small, and a sufficient contact pressure between the flat conductor F and the terminals 20 and 30 cannot be obtained, and the electrical conduction state becomes unstable. . Further, the amount of elastic displacement of the locking arm portion 45 of the metal fitting 40 is reduced, and a sufficient amount of engagement of the locking portion 45A of the metal fitting 40 with respect to the locked portion F2 of the flat conductor F cannot be obtained. It will not be possible to sufficiently prevent F from coming off.

  In this embodiment, when the cam portions 65, 66, and 67 are shaved and the movable member 60 is shifted downward from the normal position, the terminal is absent regardless of the position of the movable member 60 from the open position to the closed position. In a range, the restricting portion 15C of the bottom wall 15 of the housing 10 contacts the movable member 60 from below. Accordingly, the lowering of the movable member 60 by a predetermined amount or more is restricted, and further cam portions 65, 66, 67 are prevented from being scraped. As described above, the restricting portion 15C is formed with such a height that the deviation of the trajectory of the cam portions 65, 66, 67 in the turning process of the movable member 60 can be kept within an allowable range. The amount of lowering of the movable member 60 from the normal position does not become excessive, the operational feeling of the movable member 60, the contact pressure between the flat conductor F and the terminals 20 and 30, and the electrical conduction state, and the flat conductor F The locking state with the metal fitting 40 can be maintained satisfactorily.

  In the present embodiment, the restricting portion 15C of the housing 10 comes into contact with the movable member 60 only when the movable member 60 is lowered by a predetermined amount from the normal position. Even if the movable member 60 is in the normal position, if the restricting portion 15C is configured to contact the movable member 60, various problems occur due to dimensional errors and assembly errors of each member of the connector 1. obtain. For example, while the restricting portion 15C is in contact with the movable member 60 at the normal position, the cam portions 65, 66, 67 and the terminals 20, 30 of the movable member 60 and the support arm portions 26, 36, 46 of the metal fitting 40 are supported. An inadvertent gap is formed between the cam portions 65, 66, and 67 and the support arm portions 26, 36, and 46 may not be supported.

  On the other hand, in the present embodiment, when the movable member 60 is in the normal position, a gap is formed between the movable member 60 and the restricting portion 15C so as not to come into contact with the movable member 60. The restricting portion 15C comes into contact with the movable member 60 only when 60 is lowered by a predetermined amount from the normal position, that is, only when the cam portions 65, 66, 67 are shaved by a predetermined amount. Therefore, according to the present embodiment, even if a dimensional error or an assembly error occurs during the manufacture of the connector 1, the above-described problems cannot occur as long as these errors are within an allowable range. As a result, according to this embodiment, manufacture of the connector 1 becomes easy.

<Second embodiment>
In the first embodiment, the regulation portion 15C is formed on the bottom wall 15 of the housing 10 in the terminal absence range in the terminal arrangement direction to regulate the lowering of the movable member 60 by a predetermined amount or more. The lower end of the movable member in the absence of terminals in the movable member is positioned below the lower end in the other range without providing the restriction portion as in the first embodiment, so that the predetermined amount or more of the movable member is exceeded. Lowering is restricted, and this is different from the first embodiment. In the present embodiment, parts corresponding to those in the first embodiment are denoted by reference numerals with “100” added to the reference numerals in the first embodiment, and differences from the first embodiment will be mainly described.

  FIG. 10 is an overall perspective view showing the flat conductor electrical connector 101 (hereinafter simply referred to as “connector 101”) according to the second embodiment together with the flat conductor F ′. The connector 101 according to the present embodiment includes a housing 110 that receives a flat conductor F ′ from the rear, two types of terminals 120 and 130 (first terminal 120 and second terminal 130) and metal fittings that are arranged and held in the housing 110. 140 and a movable member 160 supported by the housing 110, the terminals 120 and 130, and the metal fitting 140.

  As in the housing 10 of the first embodiment, the housing 110 is formed with a receiving portion 116 for receiving the flat conductor F ′ opened rearward, and accommodates a part of the movable member 160 to accommodate the movable member. An open space 117 (see, for example, FIG. 11D) that allows the 160 to rotate is formed on the front end side.

  The housing 110 has terminal grooves 111 and 112 for receiving and holding the terminals 120 and 130 and the metal fitting 140 and a metal fitting groove 113 (see FIG. 11) arranged in the terminal arrangement direction. As shown in FIG. 11, the terminal grooves 111 and 112 and the metal fitting groove 113 are terminal upper grooves 111A, 112A and 113A for accommodating the upper arms 121, 131 and 141 of the terminals 120 and 130 and the metal fitting 140, respectively. Terminal lower grooves 111B, 112B, and 113B for accommodating the lower arm portions 122, 132, and 142, respectively. Further, the mounting portions 118A, 118B, and 118C for press-fitting and holding the terminals 120 and 130 and the metal fitting 140 have an island shape, and the mounting portions 118A and 118C are the connecting portions 123 and 143 of the first terminal 120 and the metal fitting 140. The mounting portion 118 </ b> B is located further rearward than the connecting portion 133 of the second terminal 130.

  In the present embodiment, the bottom wall 115 is such that the upper surface of the portion that forms the open space 117 forms a flat surface over the entire region in the terminal arrangement direction, and does not have a regulating portion as in the first embodiment.

  In the present embodiment, the terminals 120 and 130 are used as signal terminals, but some of the terminals 120 and 130 may be used as ground terminals. As can be seen in FIGS. 11A and 11B, the terminals 120 and 130 are substantially H-shaped like the first terminal 20 of the first embodiment. 131 and lower arm portions 122 and 132 are connected by connecting portions 123 and 133 at an intermediate position in the front-rear direction. As can be seen by comparing FIG. 11A and FIG. 11B, the rear ends of the upper arm 121 and the lower arm 122 of the first terminal 120 are the upper arm 131 and the lower arm 132 of the second terminal 130, respectively. It is located in front of the rear end. The connection portion 126A of the first terminal 120 is formed at the front end of the lower arm portion 122, while the connection portion 137B of the second terminal 130 is formed at the rear end of the lower arm portion 132.

  In the present embodiment, the pressing arm portions 125 and 135 of the upper arm portions 121 and 131 of the terminals 120 and 130 also have a function as contact arm portions for electrical connection with the flat conductor F ′. That is, the movable member 160 is brought to the closed position, and the pressing arm portions 125 and 135 of the terminals 120 and 130 are elastically displaced downward, and the pressing portions 125A and 135A at the rear ends of the pressing arm portions 125 and 135 are flattened. By pressing the mold conductor F ′ from above, the pressing portions 125A and 135A are brought into electrical contact with the connection circuit portion F3 ′ (see FIG. 10) exposed on the upper surface of the flat conductor F ′ with contact pressure. To do. At the same time, the contact portions 127A and 137A at the rear ends of the contact arm portions 127 and 137 of the terminals 120 and 130 come into contact with other connection circuit portions (not shown) exposed on the lower surface of the flat conductor F ′ with contact pressure. And become electrically conductive.

  The first terminal 120 having such a shape is inserted from the front into the first terminal groove 111 of the housing 110 in the same manner as the first terminal 20 of the first embodiment, and protrudes from the upper edge of the contact arm portion 127. The pressed press-fitting protrusion 127B is attached by being press-fitted into the attaching portion 118A. On the other hand, the second terminal 130 is inserted into the second terminal groove 112 of the housing 110 from the rear, and is attached by press-fitting a press-fitting protrusion 136C formed on the upper edge of the support arm part 136 into the attachment part 118B. It is done.

  Similar to the metal fitting 40 of the first embodiment, the metal fitting 140 has a substantially horizontal H shape, and is engaged with the flat conductor F ′ by an engagement portion 145A provided at the rear end of the upper arm portion 141. Thus, the flat conductor F ′ is prevented from coming off. In the metal fitting 140, the solder fixing portion 146A is provided at the front end of the support arm portion 146 of the lower arm portion 142, and in this respect, the solder fixing portion 47A is provided at the rear end of the lower arm portion 42. It is different from the metal fitting 40 of the embodiment. Further, the pressure receiving arm portion 144 of the upper arm portion 141 of the metal fitting 140 is formed with a pressure receiving portion 144A having a substantially semicircular concave shape at the lower edge thereof. Also in this respect, the pressure receiving portion has such a concave shape. It is different from the metal fitting 40 of the first embodiment. The pressure receiving portion 144A receives a force from the third cam portion 167 of the movable member 160 and rotates and guides the third cam portion 167. The metal fitting 140 having such a structure is inserted by being inserted into the metal fitting groove 113 of the housing 110 from the front, and a press-fitting protrusion 147B formed to protrude from the upper edge of the straight arm portion 147 is press-fitted into the attachment portion 118C. It is done.

  Similar to the movable member 60 of the first embodiment, the movable member 160 has a first cam portion 165, a second cam portion 166, and a second cam portion 166 at the positions of the first terminal 120, the second terminal 130, and the metal fitting 140, respectively, in the terminal arrangement direction. A third cam portion 167 is formed. In this embodiment, not only the first terminal 120 and the metal fitting 140 but also the second terminal 130 has the upper arm portion 131, and the second cam portion is formed by the pressure receiving arm portion 134 formed at the front portion of the upper arm portion 131. An upward pressing force from 166 is received.

  As shown in FIGS. 11A and 11C, when the movable member 160 is in the open position, the first cam portion 165 and the third cam portion 167 are the same as the first cam portion 65 of the first embodiment. In addition, the cross section perpendicular to the terminal arrangement direction has a long and narrow shape extending in the front-rear direction as a whole, between the support arm portion 126 of the first terminal 120 and the upper edge of the support arm portion 146 of the metal fitting 140, respectively. It is located with a gap in the vertical direction. The cam portions 165 and 167 are formed as guided portions 165A and 167A in the latter half portion and supported portions 165B and 167B in the front half portion, and this point is also the same as the first cam portion 65 in the first embodiment.

  As shown in FIG. 11B, the second cam portion 166 has a substantially rectangular shape extending in the front-rear direction when the movable member 160 is in the open position, and is below the rear portion of the second cam portion 166. The edge is supported from below by the upper edge of the support arm 136 of the second terminal 130. Further, the rear end edge of the upper portion of the second cam portion 166 protrudes, and the pressure receiving portion of the pressure receiving arm portion 134 of the second terminal 130 at the protruding portion in the turning process and the closed position of the movable member 160. 134A is pressed from below (see FIGS. 12B and 13B).

  When the movable member 160 is in the open position, a part of the terminal absence range in the terminal arrangement direction, specifically, a range other than the position of the metal fitting 140 outside the terminal arrangement range (hereinafter referred to as “predetermined terminal absence range”). ), The lower edge of the movable member 160 is located so as to protrude downward from the lower edge in the range other than the predetermined terminal absence range over the entire front-rear direction. Further, the front edge of the movable member 160 in the predetermined terminal absence range is located so as to protrude forward from the front edge in the range other than the predetermined terminal absence range over the entire vertical direction. The continuous protruding edge portion composed of the lower edge and the front edge of the movable member 160 in the predetermined terminal absence range is lower than the normal position because the movable member 160 is scraped by the cam portions 165, 166, and 167 of the movable member 160. It functions as a restricting portion 168 (see FIG. 11D) that restricts the lowering of the movable member 160 by a predetermined amount or more when it deviates. Specifically, when the movable member 160 shifted downward is in any rotation angle position, the movable member 160 comes into contact with the upper surface of the bottom wall 115 at the lowest end portion of the restricting portion 168 of the movable member 160. The lowering of the predetermined amount or more is regulated.

  The protruding amount of the restricting portion 168 in the predetermined terminal absence range is such a dimension that the deviation of the locus of the cam portions 165, 166, and 167 (deviation from the normal locus) during the rotation process of the movable member 160 can be kept within an allowable range. Yes, depending on the product. For example, if the protrusion amount is set large, the maximum descending amount of the movable member 160 of the movable member 160 can be reduced accordingly.

  In the present embodiment, the predetermined terminal absence range in which the restricting portion 168 of the movable member 160 is formed in the terminal arrangement direction is a partial range of the terminal absence range. The predetermined terminal absence range may be defined as the entire area of the terminal absence range, and the restriction portion may be formed in the entire area of the terminal absence range.

  The connector 101 of this embodiment having such a configuration is used and functions in the following manner.

  First, the connector 101 is arranged at a predetermined position on a circuit board (not shown), and the connection part 126A of the first terminal 120, the connection part 137B of the second terminal 130, and the solder fixing part 146A of the metal fitting 140 are respectively provided on the circuit board. Connect and fix to the corresponding part of the solder.

  With the connector 101 thus attached to the circuit board, the connecting portion of the flat conductor F ′ is moved forward into the receiving portion 116 in a state where the movable member 160 is brought to the open position where it can be suspended as seen in FIG. Insert toward. The connecting portion of the flat conductor F ′ is between the pressing arm portion 125 and the contact arm portion 127 of the first terminal 120, between the pressing arm portion 135 and the contact arm portion 137 of the second terminal 130, and of the metal fitting 140. It is easily inserted between the locking arm portion 145 and the straight arm portion 147.

  Next, the movable member 160 is rotated toward the closed position. When the movable member 160 starts to rotate from the open position, first, the second cam portion 166 comes into sliding contact with the upper edge of the support arm portion 136 of the second terminal 130. Due to this sliding contact, the center of rotation of the movable member 160 moves upward. As a result, the first cam portion 165 serves as the pressure receiving arm portion 124 of the first terminal 120, and the third cam portion 167 serves as the pressure receiving arm portion 144 of the metal fitting 140. Is pushed upward and displaced. Similar to the first embodiment, the first cam portion 165 and the third cam portion 167 are respectively connected to the support arm portion 126 of the first terminal 120 and the support arm portion 146 of the metal fitting 140 immediately after the rotation of the movable member 160 starts. There is a gap between the support arm portions 126 and 146 so that they do not slide. Therefore, the second cam portion 166 and the support arm portion 136 are slidably contacted with each other under a large contact pressure, and the second cam portion 166 is likely to be scraped.

  When the rotation of the movable member 160 from the open position proceeds, as shown in FIG. 12, the first cam portion 165 is at the upper edge of the support arm portion 126 and the third cam portion 167 is at the upper edge of the support arm portion 146. In the rotation process after this point, all the cam portions 165, 166, 167 come into sliding contact with the upper edges of the support arm portions 126, 136, 146. Therefore, the contact pressure between the second cam portion 166 and the support arm portion 136 is reduced accordingly. In this turning process, the cam portions 165, 166, and 167 press the pressure receiving arm portions 124, 134, and 144 further upward.

  When the movable member 160 further rotates and reaches a predetermined rotation angle position, the amount of upward displacement of the pressure receiving arm portions 124, 134, 144 is maximized. As a result, the respective pressing arm portions 125, 135 are maximized. Then, the locking arm portion 145 is displaced downward with the maximum amount of displacement. Similar to the first embodiment, a click feeling is generated when the movable member 160 rotates beyond the rotation angle position.

  Further, when the movable member 160 is rotated and brought to the closed position, as shown in FIG. 13, the cam portions 165, 166, and 167 support arms at their lower edges (front edges when they are in the open position). Supported by the portions 126, 136, and 146, the movable member 160 is maintained in the closed position. As a result, as shown in FIGS. 13A and 13B, the pressing portions 125A and 135A of the terminals 120 and 130 are seen from above and the contact portions 127A and 137A are seen from below, respectively. It contacts the connection circuit part with contact pressure and becomes electrically conductive. Further, as shown in FIG. 13C, the locked state between the locking portion 145A of the locking arm portion 145 of the metal fitting 140 and the front edge of the locked portion F2 ′ of the flat conductor F ′ is maintained. Thus, the flat conductor F ′ is reliably prevented from coming off.

  Further, as can be seen in FIGS. 11D, 12D, and 13D, the movable member 160 is in any rotation angle position from the open position to the closed position as long as it is in the normal position. In addition, a gap is formed between the lower end of the restricting portion 168 of the movable member 160 and the bottom wall 115 of the housing 110, so that the movable member 160 does not slidably contact the bottom wall 115.

  However, when the rotating operation of the movable member 160 is repeated and the cam portions 165, 166, and 167 are scraped, the cam portions 165, 166, and 167 and the movable member 160 are moved downward from the normal position according to the shaved amount. It will shift to. In this embodiment, when the movable member 160 is in any rotational angle position from the open position to the closed position, when the cam portions 165, 166, and 167 are shaved and the movable member 160 is shifted downward from the normal position, The lower end of the restricting portion 168 of the movable member 160 abuts on the upper surface of the bottom wall 115 of the housing 110 within a predetermined terminal absence range. Accordingly, the lowering of the movable member 160 by a predetermined amount or more is restricted, and further cam portions 165, 166, and 167 are prevented from being scraped. As described above, the protruding amount of the restricting portion 168 is a dimension that can keep the deviation of the locus of the cam portions 165, 166, and 167 (deviation from the normal locus) in the allowable range during the rotation of the movable member 160. As a result, the amount of lowering of the movable member 160 from the normal position does not become excessive. As a result, the operational feeling of the movable member 160, the contact pressure between the flat conductor F ′ and the terminals 120 and 130, The electrically conductive state, the locked state between the flat conductor F ′ and the metal fitting 140, etc. can be maintained satisfactorily.

  The shape of the terminal provided in the connector to which the present invention is applicable is not limited to the shape of the terminal described in the first and second embodiments. For example, a plurality of terminals arranged and held in the connector have lower arm portions, at least some of the lower arm portions have support arm portions, and at least some of the plurality of terminals are The present invention can be applied as long as it has an upper arm portion and the upper arm portion has a pressing arm portion. Moreover, it is not essential that two types of terminals having different shapes are provided, and all the terminals may have the same shape, or three or more types of terminals having different shapes may be provided.

  In the first and second embodiments, the movable member is provided with a plurality of types of cam portions having different shapes from each other. Instead, the same shape of the cam portion is provided. It is good also as being done.

DESCRIPTION OF SYMBOLS 1,101 Connector 36B Cam support part 10,110 Housing 50 Shield plate 15,115 Bottom wall 52 Front contact piece 15C Control part 53 Back contact piece 20,120 First terminal 60,160 Movable member 21,121 Upper arm part 65,165 First cam portion 22, 122 Lower arm portion 66, 166 Second cam portion 23, 123 Connecting portion 131 Upper arm portion 24, 124 Pressure receiving arm portion 132 Lower arm portion 24A, 124A Pressure receiving portion 133 Connecting portion 25, 125 Pressing arm portion 134 Pressure receiving arm portion 25A, 125A Pressing portion 134A Pressure receiving portion 26, 126 Support arm portion 168 Restriction portion 30, 130 Second terminal F, F ′ Flat conductor 36, 136 Support arm portion

Claims (3)

An electrical connector for a flat conductor, which is arranged on a mounting surface of a circuit board and in which a flat conductor is inserted and removed in a front-rear direction which is one direction parallel to the mounting surface,
A housing in which a receiving portion for receiving the flat conductor inserted forward is opened to the rear; and
A plurality of terminals arranged and held in the housing with a metal plate member maintaining a flat plate surface as a terminal arrangement direction in a direction perpendicular to the plate surface;
A movable member movable with a rotation between an open position enabling insertion of the flat conductor into the housing and a closed position pressing the flat conductor;
The housing allows movement of the movable member in front of the receiving portion,
In the flat connector electrical connector, the movable member has a cam portion that cooperates with the terminal at a position corresponding to the terminal in the terminal arrangement direction.
The plurality of terminals have a lower arm portion extending in the front-rear direction at a position on the bottom wall side of the housing,
At least some of the lower arm portions of the plurality of terminals have a support portion on the front end side for supporting the cam portion of the movable member from below,
At least some of the plurality of terminals, in addition to the lower arm portion, are connected to the lower arm portion by a connecting portion at an intermediate position in the front-rear direction of the lower arm portion, and front and rear at a position on the upper wall side of the housing. And an upper arm portion extending in a direction. The upper arm portion receives a force from the cam portion of the movable member and elastically displaces the pressure receiving portion toward the front end. And a pressing portion for increasing the contact pressure between the flat conductor and the terminal on the rear end side by elastically displacing downward in accordance with the above and pressing the flat conductor from above,
The movable member that is shifted downward from the normal position in a predetermined terminal absence range that is at least part of a terminal absence range different from the terminal position in the terminal arrangement direction when the movable member is at least in a moving process. An electrical connector for a flat conductor, characterized in that can be brought into contact with the bottom wall in the vertical direction.   2. The electrical connector for a flat conductor according to claim 1, wherein an upper surface of the bottom wall of the housing is located above a top surface in a range other than the predetermined terminal absence range. The flat conductor electrical connector according to claim 1 or 2, wherein the movable member has a lower end of the movable member in a predetermined terminal absence range located below the lower end of the cam portion.

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