TWI651893B - Flat conductor electrical connector - Google Patents

Abstract

To provide a flat-conductor electrical connector When the cam portion of the movable member is worn by the rotation of the member, the operation feeling of the movable member can also maintain the operation feeling close to the normal operation feeling.

The terminal (20), in addition to the lower arm portion (22), also has An upper arm portion (21) extending in the front-rear direction by being connected to a lower arm portion (22) by a connecting portion (23), the upper arm portion (21) having a cam portion receiving a movable member (60) at a front end side thereof. The pressure-receiving portion (24A) that can be elastically displaced upward by the pressure of the force of (65) has a rear end side that is elastically displaced downward due to the elastic displacement of the pressure-receiving portion (24A) and from above The pressing part (25A) for pressing the flat conductor (F); when the movable member (60) is at least in the process of moving, the terminal in the terminal arrangement direction which is different from the positions of the terminals (20) and (30) is not in the range At least a part of the predetermined terminal is out of range, and the movable member (60) shifted downward from the regular position can abut against the bottom wall (15) in the vertical direction.

Description

Electrical connector for flat conductor

The present invention relates to an electrical connector for a flat conductor that is arranged on a mounting surface of a circuit board and is used for inserting and removing a flat conductor.

The electrical connector for such a flat conductor is disclosed in the structure of Patent Document 1, for example. The electrical connector for a flat conductor of Patent Document 1 holds a plurality of terminal arrays in a case, and the operation lever is rotatably supported by the case. The operating lever can be rotated between the open position where the flat conductor is allowed to be inserted into the housing facing forward, and the closed position where the contact pressure of the flat conductor with respect to the terminal is high, at the same position as each terminal. It has a cam part mentioned later.

The terminal is a metal plate member that maintains a flat plate surface, and is arranged at a right angle to the plate surface. The terminal has a lower arm portion extending forward and backward along the bottom wall of the case, and a direction along the upper wall of the case. An upper arm portion extending in the front-rear direction and a connection portion that connects the lower arm portion and the middle portion in the front-rear direction of the upper arm portion to each other. The lower arm portion has a support portion that supports the cam portion of the operating lever from below, more forward than the connecting portion. The upper arm portion is further forward than the connecting portion, and has a pressure receiving portion that can be elastically displaced upward by a force from a cam portion of the operating lever, and further rearward than the connecting portion. When the pressure receiving portion is elastically displaced upward, the contact arm portion that presses the flat conductor and contacts the flat conductor by elastically displacing downward.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4992707

In the connector of Patent Document 1, when the operation lever is rotated, each cam portion slides relative to the support portion of the terminal during the rotation. Generally, the operating lever is made of electrical insulating materials such as synthetic resin and has a lower strength than the metal plate member, that is, the terminal. After the rotation operation of the operating lever is repeatedly performed, the cam portion of the operating lever and the supporting portion of the terminal The thick surface of the board is rubbed and abraded. If the cam portion is worn, the cam portion or the rotation center of the cam portion may be shifted downward from a regular position according to the amount of wear. As a result, the trajectory of the cam portion during the rotation of the operating lever may be different from the normal trajectory, so that an operation feeling such as a click sense that is due to it cannot be obtained. For example, the operating lever may be difficult to operate or the position of the operating lever may be misidentified.

In view of this situation, the present invention is to provide a flat-type conductive electrical connector, which can maintain the operation feeling close to regular operation even when the cam portion of the movable member is worn due to the rotation of the movable member. sense.

The electrical connector for a flat conductor of the present invention is arranged on a mounting surface of a circuit board, and the flat conductor is inserted and pulled in a direction parallel to the mounting surface, that is, a front-rear direction; the electrical connector for a flat conductor has A casing, a plurality of terminals, and a movable member; the casing is formed with a rearwardly-opening receiving portion for receiving the flat conductor inserted forward; and the plurality of terminals are made of a metal plate that maintains a flat surface. The member is arranged and held in the housing with a direction perpendicular to the board surface as a terminal arrangement direction; the movable member is movable with rotation: an open position where a flat conductor can be inserted into the housing and press the Between the closed position of the flat conductor; the housing allows the movable member to move forward of the housing portion, and the movable member has a joint action with the terminal in the terminal arrangement direction and at a position corresponding to the terminal Cam section.

In the electrical connector for a flat conductor, in the present invention, the plurality of terminals have a lower arm portion extending in a front-rear direction at a position on a bottom wall side of the housing, and at least a part of the lower arms of the plurality of terminals has a lower arm. The front end includes a support portion for supporting the cam portion of the movable member from below, and at least a portion of the plurality of terminals has a front-back direction in addition to the lower arm portion. The middle position is an upper arm portion which is connected to the lower arm portion by a connecting portion and extends in the front-rear direction at a position on the upper wall side of the housing. The upper arm portion has, on a front end side thereof, Power and direction The pressure-receiving portion that is elastically displaced upward has a rear end side that is elastically displaced downward in response to the elastic displacement of the pressure-receiving portion and presses the flat conductor from above to increase contact between the flat conductor and the terminal. The pressing part of the pressure; when the movable member is at least in the process of moving, at least a part of the predetermined terminals in the terminal arrangement direction which is different from the terminal position are not in the range, and the movable portion shifted downward from the regular position The member may be in contact with the bottom wall in the vertical direction.

In the present invention, when the cam portion of the movable member is abraded due to sliding with respect to the terminal, and the movable member is shifted downward from the regular position, the movable member abuts against the bottom wall of the housing in the up-down direction and is then The bottom wall is supported to limit the lowering of the movable member by a predetermined amount or more, and prevent further wear of the cam portion. At this time, by setting the above-mentioned predetermined amount to an up-and-down dimension that maintains the offset (offset from the normal trajectory) of the locus of the cam portion during the movement of the movable member to a permissible range, the movable member The operation can maintain the operation feeling close to the normal operation feeling.

In the present invention, in the bottom wall of the housing, the upper end of the predetermined terminal outside the range of the bottom wall is located above the upper end of the range outside the range of the predetermined terminal of the bottom wall.

In the present invention, the movable member has a lower end of the movable member which is not in a predetermined terminal range, and is located below the lower end of the cam portion.

As described above, in the present invention, when the movable member is moving at least During the process, the movable member is in contact with the bottom wall of the housing in the up-down direction when the predetermined terminal is not in the range. Therefore, even when the cam portion of the movable member slides and wears on the terminal and the movable member is shifted from the regular position downward, When the predetermined terminal is out of range, it can be supported by the bottom wall of the case. As a result, the lowering of the movable member is restricted, and further wear of the cam portion is prevented, so that the operation feeling of the movable member can be maintained close to the regular operation feeling.

1.101‧‧‧ connector

10, 110‧‧‧ shell

15, 115‧‧‧ bottom wall

15C‧‧‧Restricted Department

20、120‧‧‧The first terminal

21, 121‧‧‧ upper arm

22, 122‧‧‧ Lower arm

23, 123‧‧‧ Connection Department

24, 124‧‧‧Pressed arm

24A, 124A‧‧‧Pressed part

25, 125‧‧‧Press the arm

25A, 125A‧‧‧Pressing section

26, 126‧‧‧ Support arm

30, 130‧‧‧ 2nd terminal

36, 136‧‧‧ support arm

36B‧‧‧Cam support

50‧‧‧shield plate

52‧‧‧Front contact piece

53‧‧‧Rear contact sheet

60, 160‧‧‧ movable members

65, 165‧‧‧ 1st cam section

66, 166‧‧‧ 2nd cam section

131‧‧‧ upper arm

132‧‧‧ lower arm

133‧‧‧Connection Department

134‧‧‧Pressed arm

134A‧‧‧Pressed part

168‧‧‧Restricted Department

F, F’‧‧‧ flat conductor

FIG. 1 is an overall perspective view showing the electrical connector for a flat conductor according to the first embodiment of the present invention together with the flat conductor, and a part of the housing is omitted and shown.

FIG. 2 (A) is a perspective view of a part of the terminal and the shield plate of the electrical connector for a flat conductor of FIG. 1 as viewed from the front, and FIG. 2 (B) shows the contact of the shield plate of FIG. 2 (A). An enlarged perspective view of the contact portion between the sheet and the ground terminal.

Fig. 3 is a display view of the entire shield plate, Fig. 3 (A) is a perspective view, Fig. 3 (B) is a side view, and Fig. 3 (C) is a front view.

FIG. 4 is a cross-sectional view of a plane of the flat-type conductor electrical connector of FIG. 1 at a right angle to the vertical direction, and is a cross-sectional view of the position of the shield plate in the vertical direction viewed from above.

Fig. 5 is a perspective cross-sectional view of the flat connector electrical connector of Fig. 1 on a surface at right angles to the terminal arrangement direction of the housing, showing a terminal block; Cross section of the position of the terminal groove in the column direction.

Fig. 6 is a cross-sectional view of a flat conductor electrical connector at a right angle to the terminal arrangement direction when the movable member is in the open position, (A) is a cross-section of a ground terminal position, and (B) is a signal terminal position. (C) is a cross section showing the position of the accessory, and (D) is a cross section showing the intermediate position between the ground terminal and the accessory.

Fig. 7 is a cross-sectional view of a flat conductor electrical connector at a right angle with respect to the terminal arrangement direction when the movable member is rotated. (A) is a cross-section of a ground terminal position, and (B) is a signal terminal position. (C) is a cross section showing the position of the accessory, and (D) is a cross section showing the intermediate position between the ground terminal and the accessory.

Fig. 8 is a cross-sectional view of a flat conductor electrical connector at a right angle to the terminal arrangement direction when the movable member is further rotated from the rotation position in Fig. 7; (A) is a cross-section of the position of the ground terminal; (B) It is a cross section of the position of the signal terminal, (C) is a cross section of the position of the accessory, and (D) is a cross section showing the intermediate position of the ground terminal and the accessory.

FIG. 9 is a cross-sectional view of a flat conductor electrical connector at a right angle with respect to the terminal arrangement direction when the movable member is in the closed position. (C) is a cross section showing the position of the accessory, and (D) is a cross section showing the intermediate position between the ground terminal and the accessory.

Fig. 10 is an overall perspective view showing the electrical connector for a planar conductor according to the second embodiment together with the planar conductor.

FIG. 11 is a view of the second embodiment when the movable member is in the open position (A) is a cross-section of the position of the first terminal, (B) is a cross-section of the position of the second terminal, and (C) is an accessory (D) is a cross section showing the intermediate position between the first terminal and the accessory.

Fig. 12 is a cross-sectional view of a plane at a right angle with respect to the terminal arrangement direction of the electrical connector for a flat conductor when the movable member is rotating according to the second embodiment; (A) is a cross-section of the position of the first terminal; (B ) Is a cross section of the position of the second terminal, (C) is a cross section of the position of the accessory, and (D) is a cross section showing the intermediate position of the first terminal and the accessory.

FIG. 13 is a cross-sectional view of a flat conductor electrical connector at a right angle to the terminal arrangement direction when the movable member is in the closed position according to the second embodiment. (A) is a cross-section of the position of the first terminal. (B ) Is a cross section of the position of the second terminal, (C) is a cross section of the position of the accessory, and (D) is a cross section showing the intermediate position of the first terminal and the accessory.

Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment>

FIG. 1 is an overall perspective view showing the flat-type conductor electrical connector 1 (hereinafter simply referred to as “connector 1”) together with the flat-type conductor F according to this embodiment, and a part of the housing 10 described later is omitted and shown. 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 a direction parallel to the mounting surface, that is, in a front-rear direction.

The flat conductor F has a connection portion with the connector 1 at the front end portion (the upper right edge portion of the portion close to the connector 1 in FIG. 1), and is long toward the rear (lower left in FIG. 1). The extension is a portion showing the vicinity of the connection portion in the figure, and the illustration is omitted further behind. In the present embodiment, the flat conductor F is formed by removing a covering portion under the front end portion and exposing a connection circuit portion (not shown) to be a connection portion. A reinforcing sheet F1 is provided on the upper surface of the front end portion of the flat conductor to increase the strength when connected to the connector.

In the connection portion of the flat conductor F, a notched portion F2 is formed by a notch portion at both edges in the width direction. The engagement of the claw-shaped locking portion 45A formed by the accessory 40 described later into the notch-shaped locked portion F2 and locking thereof contributes to preventing the flat conductor F from falling off.

The connector 1 includes a housing 10 housing a flat conductor F from behind, two types of terminals 20 and 30 (first terminal 20 and second terminal 30) and accessories 40 arranged and held in the housing 10, and held in the housing. A shield plate 50 serving as a shield member of the body 10 and a movable member 60 supported by the case 10, the terminals 20, 30, and the attachment 40. As described later, the movable member 60 is accompanied by an open position (refer to FIG. 6) where the flat conductor F can be inserted into the housing 10 and a closed position (refer to FIG. 9) where the flat conductor F is pressed. It is rotatably supported.

The first terminal 20, the second terminal 30, and the accessory 40 held by the case 10 are formed as metal plate members that maintain a flat plate surface and are aligned in a direction perpendicular to the plate surface. In this embodiment, the first terminal 20 is used as a ground terminal, and the second terminal 30 is used as a signal terminal. 40. A locking member for preventing the flat conductor F from falling off is used to lock the flat conductor F. In this embodiment, the first terminal 20 and the second terminal 30 are arranged so that the two second terminals 30 are located between the adjacent first terminals 20. Each of the accessories 40 is arranged on both sides of the terminal arrangement range. The shapes of the first terminal 20, the second terminal 30, and the accessory 40 will be described in detail later.

The casing 10 is formed by molding an electrically insulating material. The flat conductor F is longer in the width direction and has a substantially rectangular outer shape with a smaller height dimension. The slit-shaped first terminal groove 11 and the second terminal groove 12 (see also FIGS. 6 (A) and (B)). 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 described later are respectively inserted and held in correspondence, and the terminal arrangement direction is formed by using the width direction as a terminal arrangement direction. On the outside of the arrangement range of the terminals, a fitting groove 13 for holding the fitting 40 is formed in the same slit shape as the first and second terminal grooves 11 and 12 in the front-rear direction (see FIG. 6 (C)). .

As described above, the first terminal 20, the second terminal 30, and the accessory 40 are formed in a relationship to maintain the flat surface of the metal plate, and are used to insert and hold the first terminal groove 11, the second terminal groove 12, and the accessory. The groove 13 also has a groove width in the terminal arrangement direction that is approximately equal to the thickness of each plate of the first terminal 20, the second terminal 30, and the accessory 40, and is in the terminal arrangement direction (see FIGS. 6 (A) and (B)). , And (C) a direction perpendicular to the paper surface) as the groove width.

First terminal groove 11, second terminal groove 12, and accessory groove 13, as shown in Figures 6 (A), (B), and (C), respectively, formed between the upper wall 14 and the bottom wall 15 of the housing 10 in the front-rear direction (left and right in the figure). ). The first terminal groove 11, the second terminal groove 12, and the accessory groove 13 extend rearward from each other at the center of the connector 1 in the vertical direction toward the terminal arrangement direction (a direction perpendicular to the paper surface of FIG. 6). The communication groove communicates with the communication groove. The communication groove forms a receiving portion 16 which is open to the rear. The connecting portion of the flat conductor F can be introduced into the receiving portion 16. As shown in FIGS. 6 (A) and (C), the first terminal groove 11 and the accessory groove 13 are separated from each other in the rear region by the above-mentioned receiving portion 16 and are formed on the lower surface of the upper wall 14 and the upper surface of the bottom wall 15 respectively. It has: a first terminal upper groove 11A and a first terminal lower groove 11B, an accessory upper groove 13A and an accessory lower groove 13B. As shown in FIG. 6 (B), 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.

The first terminal groove 11, the second terminal groove 12, and the accessory groove 13 are also communicated with each other at their front portions. In other words, the front portions of the first terminal groove 11, the second terminal groove 12, and the accessory groove 13 are formed at a position further forward than the receiving portion 16 and formed above the bottom wall 15 of the housing 10. The open space 17 is connected (see also FIG. 5). The upper wall 14 is notched at the front portion, and the open space 17 allows the arrangement of the movable member 60 and the movement caused by its rotation. The upper wall 14 has a notch portion at the rear as shown in FIG. 6 (C) at the positions of the accessory grooves 13 at both ends in the terminal arrangement direction, so that the corresponding portion of the accessory 40 can be fully elastically moved upward. Bit.

In the first terminal groove 11, the second terminal groove 12, and accessories The groove 13 is provided in the front-rear direction in a middle range between the aforementioned open space 17 covering the front portion and the receiving portion 16 at the rear portion, and is respectively provided for the first terminal 20, the second terminal 30, and the accessory 40. Mounting portions 18A, 18B, and 18C for mounting the case 10. As shown in FIG. 6 (A), the mounting portion 18A is formed in a block shape in the up-down direction and between the upper wall 14 and the bottom wall 15 in the rear range of the intermediate range. As shown in FIG. 6 (B), the mounting portion 18B is formed by projecting the lower surface of the upper wall 14 over the entire area of the intermediate range. As shown in FIG. 6 (C), the mounting portion 18C is formed in a block shape in the up-down direction and between the upper wall 14 and the bottom wall 15 in the front range.

A shield plate retaining groove 14A for holding the shield plate 50 is formed in the upper wall 14 in a range including the two second terminals 30 adjacent to each other between the first terminals 20 in the terminal arrangement direction. The shielding plate holding groove 14A is formed in a slit shape that expands at a right angle with respect to the up-down direction. As shown in FIG. 6 (B), it is formed to cover substantially the entire area in the front-rear direction, and the front end is open and the rear end is closed. The shield plate holding groove 14A is positioned in the vertical direction between the first terminal upper groove 11A of the first terminal groove 11 and the accessory upper groove 13A of the accessory groove 13. When the shield plate 50 is pressed 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. 6 (B) and (C), in the portion of the bottom wall 15 corresponding to the second terminal groove 12 and the accessory groove 13 in the terminal arrangement direction, a fixing for fixing the second terminal 30 and the accessory 40 is formed. 15A, 15B. The fixing portion 15A of the second terminal groove 12 is a thickness of the front end portion of the bottom wall 15 The tapered portion is formed, and the fixing portion 15B of the fitting groove 13 is formed into a tapered portion in the thickness of the rear end portion of the bottom wall 15.

As shown in FIG. 5, the bottom wall 15 is located in the front of the range of the open space 17 in a range where the first terminal 20, the second terminal 30, and the accessory 40 are aligned with the terminal (hereinafter referred to as "terminals" Arrangement range ") is formed in a different range (hereinafter referred to as" terminal not in range "), and a restricting portion 15C is formed which is more prominent than the terminal arrangement range and extends in the front-rear direction. As will be described later, when the movable member 60 is shifted downward from the regular position due to the abrasion of the cam portion of the movable member 60, the restricting portion 15C abuts against the movable member 60 from below to restrict the lowering by a predetermined amount or more. .

In the present embodiment, the restricting portion 15C is formed to a height dimension (from the above-mentioned terminal arrangement range) to the extent that the deviation (displacement from the regular trajectory) of the locus of the cam portion during the rotation of the movable member 60 remains within the allowable range. Height dimension from the top of the bottom wall 15), and the height dimension is appropriately set according to the product. For example, if the height dimension of the restriction portion 15C is set to be large, the maximum amount of lowering of the movable member 60 can be reduced by this. The above-mentioned "allowable range" can fully obtain: the click feeling generated during the rotation of the movable member 60, the contact pressure between the terminal and the flat conductor generated in the closed position of the movable member 60, and the fitting and the flat conductor Range of the amount of blocking.

In the present embodiment, although the restricting portion 15C is formed in the terminal arrangement direction over the entire area where the terminal is out of range, instead of this method, the restricting portion 15C may be formed in a part of the range where the terminal is out of range.

The first terminal 20, which is a ground terminal, the second terminal 30, which is a signal terminal, and the accessory 40, which is a locking member, are inserted into and held in the first terminal groove 11, the second terminal groove 12, and the accessory groove 13, respectively. It is made by keeping the flat surface of the metal plate. As shown in FIGS. 6 (A) and (C), the first terminal 20 and the accessory 40 are formed in a substantially horizontal H shape, and have upper arm portions 21 and 41 located above and lower arm portions 22 and 42 located below them. The two are connected by connecting portions 23 and 43 located in the middle portion in the front-rear direction. On the other hand, the second terminal 30 is formed into an arm shape extending in the front-rear direction along the bottom wall 15 of the case 10 within the second terminal groove 12.

As shown in FIG. 6 (A), the first terminal 20 extends in the front-rear direction to cover substantially the entire area of the housing 10. The upper arm portion 21 is formed as a pressure-receiving arm portion 24 further forward than the connection portion 23, and the rear portion thereof is formed as the pressing arm portion 25. The pressure-receiving arm portion 24 is formed with a concave pressure-receiving portion 24A at a lower edge thereof, and a pressing portion 25A protruding downward is provided at a rear end of the pressing arm portion 25. The pressure receiving portion 24A is formed in a substantially semicircular concave shape, and functions as a guide portion that guides the first cam portion 65 of the movable member 60 to be described later in rotation. As 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 uses the position of the connecting portion 23 as a fulcrum to face the pressing arm portion 25 due to the principle of leverage. Bend down and tilt.

The lower arm portion 22 of the first terminal 20 extends in the front-rear direction to the same position as the pressing portion 25A of the upper arm portion 21, and its front portion extends further forward than the pressure-receiving arm portion 24 of the upper arm portion 21. The front end projects out of the casing 10. The lower arm portion 22 is more forward than the connecting portion 23 The square portion is a support arm portion 26 that supports a first cam portion 65 of the movable member 60 described below from below, and the rear portion is a flexible contact arm portion 27. The support arm portion 26 includes a connection portion 26A that protrudes toward the outside of the housing 10 toward the front, and a bulged portion 26B that bulges convexly upward at a position close to the connection portion 23 in the front-rear direction. The raised portion 26B has a rear half higher than a front half. As described later, the raised portion 26B is such that the contact pieces 52 and 53 of the shield plate 50 are in contact with each other on the upper end surface (thick surface) of the raised portion 26B. The contact arm portion 27 includes a contact portion 27A protruding upward at the rear end position and facing the pressing portion 25A of the upper arm portion 21, and a press-in projection 27B protruding upward toward a position close to the connecting portion 23 in the front-rear direction.

The connection 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 surface contact with a corresponding circuit surface of the circuit board for solderable connection.

The connecting arm portion 27 is inclined toward the rear and upward to form a gradually increasing gap with the bottom wall 15 of the casing 10. The pressing portion 25A of the upper arm portion 21 and the contact portion 27A of the lower arm portion 22 facing each other in the up-down direction sandwich the flat conductor F (not shown) and contact the ground formed under the flat conductor F. The circuit portion is electrically connected to the ground circuit portion.

The first terminal 20 formed in this manner is inserted from the front toward the rear toward the first terminal groove 11. When inserted into a predetermined position, the contact arm portion 27 penetrates between the bottom wall 15 of the housing 10 and the block-shaped mounting portion 18A, and is fixed by allowing the press-in projection 27B to bite into the lower edge of the mounting portion 18A. To prevent the first terminal 20 from falling off.

As shown in FIG. 6 (B), the second terminal 30 extends over the entire area of the housing 10 in the front-rear direction. The front end of the second terminal 30 protrudes out of the housing 10, and the rear end is located at the lower arm portion of the first terminal 20. The rear end of 22 is approximately the same position. A front portion of the second terminal 30 serves as a support arm portion 36, and a rear portion thereof serves as a flexible contact arm portion 37. The support arm portion 36 includes a connecting portion 36A protruding forward to the outside of the housing, and a second cam portion 66 to be described later for supporting the movable member 60 from below. Cam support portion 36B. The contact arm portion 37 includes a contact portion 37A protruding upward at a rear end position. The contact portion 37A is in contact with a signal circuit portion formed under the flat conductor F (not shown), and is electrically connected to the signal circuit portion. An intermediate portion between the support arm portion 36 and the contact arm portion 37 is formed with a press-in projection 38 protruding upward.

The cam supporting portion 36B has a cam contact portion 36B-1 having an upper edge positioned at substantially the same height as a lower edge of the mounting portion 18B of the housing 10 and forming a straight edge portion extending in the front-rear direction. This cam contact portion 36B-1 is formed in a range extending further forward and backward than the pressure receiving portion 24A of the first terminal 20 in the front-rear direction.

The connection 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 surface contact with a corresponding circuit surface of the circuit board to be solderable. A cut groove-shaped fixed portion 36A-1 is formed on the rear edge side of the connecting portion 36A, and the fixed portion 36A-1 is pressed into the tapered fixing portion 15A formed on the bottom wall 15 of the housing 10 described above. , Has a function of fixing the second terminal 30 to the case 10.

The second terminal 30 formed in this manner is inserted from the front toward the rear toward the second terminal groove 12. When inserted into a predetermined position, the contact arm portion 37 penetrates between the bottom wall 15 of the housing 10 and the mounting portion 18B, and is fixed by having the press-in projection 38 bite into the lower edge of the mounting portion 18B, and is fixed by The fixed portion 36A-1 is fixed by being fitted into the fixing portion 15A of the bottom wall 15 of the case 10 to prevent the second terminal 30 from falling out.

As shown in FIG. 6 (C) of the accessory 40, the upper arm portion 41 extends in the front-rear direction to cover substantially the entire area of the casing 10. The upper arm portion 41 is formed as a pressure-receiving arm portion 44 further forward than the connection portion 43, and the rear portion thereof is formed as the locking arm portion 45 for locking with the flat conductor F. A locking portion 45A protruding downward is provided at a rear end of the locking arm portion 45. When the pressure-receiving arm portion 44 receives upward force from a third cam portion 67 of the movable member 60 to be described later, the upper arm portion 41 uses the position of the connecting portion 43 as a fulcrum to hold the arm portion 45 due to the principle of leverage. Flex and tilt downward.

The front part of the lower arm part 42 of the accessory 40 extends further forward than the pressurized arm part 44 of the upper arm part 41, and the front and rear parts extend rearward than the locking part 45A in the front-rear direction, and the rear end protrudes out of the housing. . A portion of the lower arm portion 42 that is more forward than the connecting portion 43 is formed as a support arm portion 46 that supports a third cam portion 67 described later of the movable member 60 from below, and a rear portion thereof is formed linearly along the upper surface of the bottom wall 15. Extending straight arm 47. The support arm portion 46 has a height dimension larger than that of the straight arm portion 47, and an 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-in projection 46A protruding upward in a position close to the connection portion 43 in the front-rear direction. Straight arm portion 47 having a rearward projection Welding fixing part 47A outside the case 10.

The soldering fixing portion 47A is bent downward and extends 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 surface contact with the corresponding surface of the circuit board for solderable connection. A cut groove-shaped fixed portion 47A-1 is formed on the rear edge side of the welding fixing portion 47A, and the fixed portion 47A-1 is pressed toward the tapered fixing portion 15B formed on the bottom wall 15 of the casing 10 described above. It has a function of fixing the accessory 40 to the casing 10.

The accessory 40 formed in this manner is inserted from the rear toward the front toward the accessory groove 13. When inserted into a predetermined position, the support arm portion 46 penetrates between the bottom wall 15 of the housing 10 and the block-shaped mounting portion 18C, and the press-in projection 46A is bitten into the lower edge of the mounting portion 18C, and By fixing the fixed portion 47A-1 to the fixing portion 15B of the bottom wall 15 of the housing 10, the attachment 40 is prevented from falling off.

The shield plate 50 is formed by bending a metal plate member. As shown in FIG. 1, the shield plate 50 is provided between the first terminals 20 adjacent to each other in the terminal arrangement direction (see also FIG. 2 (A) or FIG. 4). . As shown in FIGS. 3 (A) to (C), the shielding plate 50 includes a main body portion 51 having a plate surface at a right angle to the up-down direction, and side edges from both sides of the main body portion 51 (toward and backward ( The edge portion) extending in the left-right direction) of FIG. 3 (B) extends into a substantially L-shape, and the front contact piece 52 and the rear contact piece 53 are flexible in the vertical direction.

As shown in FIG. 4, when viewed from above, the main body portion 51 is formed into a substantially rectangular shape with the front-rear direction as the long-side direction, and extends in the front-rear direction to cover a substantially entire area of the housing 10 and is arranged in the terminals. The direction extends in a range including two adjacent second terminals 30. As shown in FIG. 3 (A) or FIG. 4, the main body portion 51 has a front half (in the lower half of FIG. 3 (A) and an upper half in FIG. 4), compared with the rear half It has a narrow width in the terminal arrangement direction, and a notch portion 51A is formed at the front end edge, and front end pieces 51B are formed on both sides of the notch portion 51A. As shown in FIG. 4 (A), the shielding plate 50, the front end piece 51B enters the second groove portion 63 of the movable member 60 described later from the rear (see also FIG. 6 (B)), and the notch portion 51A is received from the front. The partition wall portions 68 between the second groove portions 63 described above avoid collision with the movable member 60. A plurality of press-fitting protrusions 51C for press-fitting into the shield plate holding groove 14A of the case 10 are formed on the side edge of the rear half of the main body portion 51.

As shown in FIGS. 3 (A) to (C), the front contact piece 52 has a middle position in the front-rear direction of the main body portion 51 that is inclined downward from one of the side edges of the main body portion 51 as it goes forward. An elastic arm portion 52A extending and elastically displaceable in the up-down direction, and a front contact portion 52B extending from the front end of the elastic arm portion 52A toward the outside in the terminal arrangement direction (direction away from the main body portion 51). The rear contact piece 53 extends further from the other side edge of the main body portion 51 than the front contact piece 52 of the main body portion 51. The rear contact piece 53 has, similarly to the front contact piece 52, an elastic arm portion 53A that extends downward and inclines downward toward the front and is elastically displaceable in the vertical direction, and a terminal from the front end of the elastic arm portion 52A to the terminal. The rear contact portion 53B extends toward the outside (the 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. As shown in FIGS. 3 (A) and (B), the rear contact piece The rear contact portion 53B of 53 is located further rearward than the front contact portion 52B. As shown in FIG. 3 (C), the rear contact portion 53B is located slightly above the front contact portion 52B.

As shown in FIG. 1, FIG. 2, and FIG. 4, between the two shielding plates 50 adjacent to each other in the terminal arrangement direction, when viewed from above, a first terminal 20 is provided as a ground terminal, as shown in FIG. 2. As shown in FIGS. (A) and (B), 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 in contact with the first Terminal 20. Specifically, as shown in FIG. 2 (B), the front contact portion 52B of one of the shield plates 50 elastically contacts the ridge formed on the lower arm portion 22 of the first terminal 20 (refer to FIG. 2 (A)). The upper end surface (thick surface) of the front half of the portion 26B, and the rear contact portion 53B of the other shield plate 50 elastically contact the upper end surface (thick surface) of the rear half of the raised portion 26B. As a result, all the shielding 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 shielding plate 50 is pressed into the shielding plate holding groove 14A of the upper wall 14 of the housing 10 from the front (above FIG. 4), and the pressing plate 51C of the shielding plate 50 is pushed in. It is inserted into the relatively inner wall surface of the shield plate holding groove 14A (the inner wall surface opposite to the terminal arrangement direction), and is attached to the case 10. The shield plate 50 mounted on the case 10 positions the two second terminals 30 so as to cover from above, and as described above, the first terminal as a ground terminal on both sides of the shield plate 50 and adjacent to the shield plate 50 The upper end surface of the raised portion 26B of 20 is electrically contacted with the front contact portion 52B or the rear contact portion 53B directly and elastically.

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

As shown in FIG. 1, the movable member 60 is a member extending substantially the entire width of the casing 10 and is made of the same electrical insulating material as the casing 10.

The movable member 60 is supported so as to be rotatable from an open position shown in FIG. 6 through an intermediate position shown in FIGS. 7 and 8 to a closed position shown in FIG. 9. In FIG. 6, the rotation axis of the movable member 60 is located in a lower half of the movable member 60, and the lower half is housed in an open space 17 formed in a front portion of the casing 10. In FIG. 6, the upper half of the open space 17 protruding above the upper wall 14 of the housing 10 is an operation portion 61 for allowing a user to rotate and operate the movable member 60.

In the lower half of the movable member 60 in FIG. 6, in the width direction of the movable member 60 (in the terminal arrangement direction, in a direction perpendicular to the paper surface in FIG. 6), the first terminal 20 and the second terminal 30. The positions corresponding to the accessory 40 are formed through the front and back: slit-shaped ones that allow the first terminal 20, the shield plate 50, and each of the pressure-receiving arm portions 24, the front end piece 51B, and the pressure-receiving arm portion 44 of the accessories 40 to enter First groove portion 62, second groove portion 63, and Third groove section 64. The groove widths of the first groove portion 62, the second groove portion 63, and the third groove portion 64 (the widths of the inner surfaces of the grooves at right angles to the paper surface) are slightly larger than: the plate thickness of the first terminal 20, The width of the front end piece 51B of the shield plate 50 and the plate thickness of the accessory 40 are measured. 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 inner surfaces of the grooves to each other.

The first cam portion 65 provided in the first groove portion 62 corresponding to the first terminal 20 in the terminal arrangement direction is, as shown in FIG. 6 (A), a lower portion of the first groove portion 62 of the movable member 60 provided in the open position. The position is located 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 is formed in an elongated shape extending in the front-back direction as a whole at a cross section perpendicular to the terminal arrangement direction, and is positioned above the support arm portion 26 of the first terminal 20. There is a vertical gap between the edges.

The rear half of the first cam portion 65 (in the left half of FIG. 6 (A)) is formed as a guided portion that is guided by the pressure receiving portion 24A of the first terminal 20 during the rotation of the movable member 60. 65A, the front half (in the right half of FIG. 6 (A)) is formed as a supported portion 65B that is supported from below by the support arm portion 26 of the first terminal 20 during the rotation and in the closed position. The rear edge of the guided portion 65A that is in sliding contact when guided by the pressure receiving portion 24A is formed into an arc shape suitable for the pressure receiving portion 24A. The guided portion 65A extends forward from the front edge of the lower portion of the guided portion 65A, and the front end edge directly supported by the support arm portion 26 during the turning process and the closed position is formed into an arc. shape. The center of rotation of the first cam portion 65 is located in the area of the guided portion 65A when viewed in the terminal arrangement direction (a direction perpendicular to the paper surface of FIG. 6 (A)), and by the rotation of the movable member 60, The pressure-receiving arm portion 24 of the first terminal 20 is elastically displaced to move up and down, and left and right are restricted by the front and rear edge portions of the concave pressure-receiving portion 24A without moving.

The second cam portion 66 provided in the second groove portion 63 corresponding to the second terminal 30 in the terminal arrangement direction is, as shown in FIG. 6 (B), a lower portion of the second groove portion 63 of the movable member 60 provided in the open position. The position is located between the front end piece 51B of the shield plate 50 in the vertical direction and the support arm portion 36 of the second terminal 30. When the movable member 60 is in the open position, the second cam portion 66 is formed in a substantially rectangular shape as a whole at a cross section perpendicular to the terminal arrangement direction. The linear lower edge of the second cam portion 66 passes through the second terminal 30. The upper edge of the support arm portion 36 is supported from below. The lower front edge of the second cam portion 66 is a portion that is in sliding contact with the upper edge of the support arm portion 36 during the rotation of the movable member 60 and is supported in an arc shape. The rear edge of the upper portion of the second cam portion 66 is chamfered to form a beveled edge portion, and collision with the front end piece 51B of the shield plate 50 during the rotation of the movable member 60 can be avoided. The leading edge of the second cam portion 66 is linearly extending in the up-down direction. When the movable member 60 reaches the closed position, it is extended in the front-rear direction and is supported from below by the support arm portion 36 (refer to FIG. 9). (B)).

The third cam portion 67 provided in the terminal arrangement direction in the third groove portion 64 corresponding to the fitting 40 is, as shown in FIG. 6 (C), a lower position of the third groove portion 64 of the movable member 60 provided in the open position. lie in Between the pressure receiving arm portion 44 and the support arm portion 46 of the up-down fitting 40. When the movable member 60 is in the open position, the third cam portion 67 is formed in a shape that extends at a right angle with respect to the terminal arrangement direction so as to extend in the front-rear direction. The third cam portion 67 has its lower front edge inclined upward as it goes forward, and its lower rear edge inclined upward as it goes rearward, and the lower edge of the transition portion (junction portion) between the lower front edge and the lower rear edge. Create a protruding edge protruding downward. The third cam portion 67 supports the support arm portion 46 from below with the protruding edge at the open position.

An edge portion protruding rearward from the upper portion of the third cam portion 67 is formed in an arc shape, and slides into contact with the pressure receiving arm portion 44 during the rotation of the movable member 60 (refer to FIG. 7 (C), FIG. 8 (C) ). The leading edge of the third cam portion 67 is formed in a straight line extending in the up-down direction. When the movable member 60 reaches the closed position, it is extended in the front-back direction and is supported from below by the support arm portion 46 (refer to FIG. 9). (C)).

When the movable member 60 is in the open position, the terminals in the terminal arrangement direction are out of range. As shown in FIG. 6 (D), the lower surface of the movable member 60 is between the lower portion 15C of the housing 10 and the restricting portion 15C of the housing 10 There is a gap in the vertical direction.

The connector 1 of this embodiment configured as described above is used in the following manner and functions as follows.

First, the connector 1 is arranged at a predetermined position on a circuit board (not shown), and the connection portion 26A of the first terminal 20, the connection portion 36A of the second terminal 30, and the soldering portion 47A of the accessory 40 are respectively connected to Corresponding parts of the circuit board are soldered and fixed.

Regarding the connector 1 mounted on the circuit board, the movable member 60 is adjusted to the upright open position as shown in FIG. 6, and the housing portion 16 of the housing 10 is opened toward the rear (left in the figure). Is in a state where the flat conductor F can be inserted.

Next, in a state where the movable member 60 is in the open position as shown in FIG. 6, the connection portion (not shown) of the flat conductor F is inserted forward into the accommodation portion 16. The first terminal 20 has a slightly wider gap between the thickness of the connection portion of the flat conductor F and the pressing portion 25A of the pressing arm portion 25 and the contact portion 27A of the contact arm portion 27, so that the flat conductor F is easy. The connection part is inserted. However, the fitting 40 has a narrower interval between the locking portion 45A of the locking arm portion 45 and the straight arm portion 47 of the fitting 40 than the thickness of the connection portion of the flat conductor F. The front end of the conductor F is lifted by elastically deforming the locking portion 45A, and the gap is widened while advancing to a predetermined position. Then, the locking portion 45A enters the notch-shaped locked portion of the flat conductor F from above. The portion F2 temporarily holds the flat conductor F.

Even if the connection portion of the flat conductor F is inserted as described above, since the movable member 60 is located in the open position, the contact portion 27A formed at the lower edge of the contact arm portion 27 which is the rear half of the lower arm portion 22 of the first terminal 20 Its position is separated from the bottom wall 15 of the casing 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 is in sliding contact with the support arm portion 36 of the second terminal 30. With this sliding contact When the center of rotation of the movable member 60 is moved upward, as a result, the first cam portion 65 presses and shifts the pressure receiving arm portion 24 of the first terminal 20 upward, and the third cam portion 67 moves the pressure receiving arm portion 44 of the accessory 40. Press upward to shift. After the first cam portion 65 and the third cam portion 67 start to rotate, there is a gap between the first cam portion 65 and the third cam portion 67 and the support arm portion 26 of the first terminal 20 and the support arm portion 46 of the attachment 40, respectively, and they do not interfere with the support. The arms 26, 46 are in sliding contact. That is, all the reaction forces acting downward from the pressure receiving arm portions 24 and 44 on the cam portions 65 and 67 will be received only by the sliding contact portion between the second cam portion 66 and the support arm portion 36. Therefore, the second cam portion 66 and the support arm portion 36 are brought into sliding contact with each other in a state of receiving a large contact pressure, and the second cam portion 66 is liable to wear.

When the movable member 60 is rotated from the open position, as shown in FIG. 7, the first cam portion 65 abuts on the support arm portion 26 and the third cam portion 67 abuts on the support arm portion 46. During the rotation, all the cam portions 65, 66, 67 are in sliding contact with the support arm portions 26, 36, 46. Then, the reaction forces acting downward from the pressure-receiving arm portions 24 and 44 on the cam portions 65 and 67 are received by the sliding contact portions of all the cam portions 65, 66 and 67 and the support arm portions 26, 36 and 46, thereby The contact pressure between the second cam portion 66 and the support arm portion 36 is reduced. During this rotation, the cam portions 65 and 67 press the pressure-receiving arm portions 24 and 44 further upward.

The movable member 60 further rotates, and as shown in FIG. 8, when the cam portions 65 and 67 press the pressure-receiving arm portions 24 and 44 further upward, the amount of upward displacement of the pressure-receiving arm portions 24 and 44 becomes the maximum. First The pressing arm portion 25 of the terminal 20 and the locking arm portion 45 of the accessory 40 are displaced downward with the maximum amount of displacement.

When the movable member 60 is further rotated to the closed position, as shown in FIG. 9, the lower edges (leading edges when in the open position) of the cam portions 65, 66, and 67 are supported by the support arm portions 26, 36, and 46. , The movable member 60 is maintained in the above-mentioned closed position. At this time, the amount of upward displacement of the pressure receiving arm portions 24 and 44 caused by pressing the cam portions 65 and 67 is smaller than that in the state shown in FIG. 8. With this structure, in the turning operation of the movable member 60 toward the closed position, it is possible to obtain a click feeling when the cam portions 65, 66, and 67 pass the rotation angle position shown in FIG. 8.

As described above, when the movable member 60 reaches the closed position, the pressing arm portion 25 of the first terminal 20 has a sufficient amount of displacement and is displaced downward, and the flat conductor F (not shown) is pressed from above by the pressing portion 25A. ). As a result, the contact portions 27A and 37A of the contact arm portions 27 and 37 and the lower connection circuit portion of the flat conductor F are brought into contact with each other and electrically conductive. The locking arm portion 45 of the accessory 40 is displaced downward with a sufficient amount of displacement, and the locking portion 45A is caused to penetrate into the locked portion F2 of the flat conductor F and the locked portion having a sufficient locking amount. The leading edge of the portion F2 is kept locked, and the flat conductor F is reliably prevented from falling off.

As shown in FIG. 6 (D), FIG. 7 (D), FIG. 8 (D), and FIG. 9 (D), the movable member 60 is in the normal position and any position from the open position to the closed position. At a rotation angle position, 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 slide into contact with the restricting portion 15C.

In the connector 1 of this embodiment, each time the rotating operation of the movable member 60 is performed between the open position and the closed position, the cam portions 65, 66, and 67 of the movable member 60 made of an electrically insulating material and the metal plate are repeatedly performed. The sliding contact of the supporting arm portions 26 and 36 of the terminals 20 and 30 or the supporting arm portion 46 of the accessory 40 will cause the cam portions 65, 66 and 67 to wear. Especially from the opening position shown in FIG. 6 to the rotation position shown in FIG. 7, as described above, since the contact pressure between the second cam portion 66 and the support arm portion 36 of the second terminal 30 increases, Therefore, abrasion of the second cam portion 66 easily occurs.

If the cam portions 65, 66, and 67 are worn, the cam portions 65, 66, and 67 will be shifted downward from the regular positions according to the amount of wear. If the movable member 60 is excessively shifted from the regular position, the locus of the cam portions 65, 66, and 67 during the rotation of the movable member 60 will be different from the regular locus, so that the operation feeling such as the click feeling that should be obtained cannot be obtained. For example, the movable member 60 may be made difficult to operate or the position of the movable member 60 may be misidentified. Further, in the closed position, the amount of elastic displacement of the pressing arm portion 25 of the terminal 20 becomes small, and sufficient contact pressure between the flat conductor F and the terminals 20 and 30 cannot be obtained, making the electrical conduction state unstable. In addition, the amount of elastic displacement of the locking arm portion 45 of the accessory 40 becomes small, and a sufficient locking amount of the locking portion 45A of the accessory 40 with respect to the locked portion F2 of the flat conductor F cannot be obtained, and the flat conductor cannot be sufficiently prevented. F comes off.

In the present embodiment, when the cam portions 65, 66, and 67 are worn out and the movable member 60 is shifted downward from the regular position, the movable member 60 is in the terminal even at any position from the open position to the closed position. The restricting portion 15C of the bottom wall 15 of the case 10 that is out of range abuts the movable member 60 from below. Then, the lowering of the movable member 60 by a predetermined amount or more is restricted, and further wear of the cam portions 65, 66, 67 is prevented. As described above, the restricting portion 15C is formed to a height dimension that keeps the track offset of the cam portions 65, 66, and 67 of the turning process of the movable member 60 within an allowable range, and as a result, the movable member 60 is lowered from the regular position by an amount It is not too large and can be maintained well: the operational feeling of the movable member 60, the contact pressure or electrical conduction state of the flat conductor F and the terminals 20, 30, the locked state of the flat conductor F and the attachment 40, and the like.

In this embodiment, only when the movable member 60 is lowered by a predetermined amount from the regular position, the restricting portion 15C of the housing 10 comes into contact with the movable member 60. It is assumed that even when the movable member 60 is in the regular position, the restricting portion 15C abuts on the movable member 60, and various defects may occur due to the size error or assembly error of each member of the connector 1. For example, the restricting portion 15C abuts on the movable member 60 located at the regular position, and is between the cam portions 65, 66, and 67 of the movable member 60 and the support arms 26, 36, and 46 of the terminals 20, 30, and the accessory 40 If an unexpected gap is formed, the cam portion 65, 66, 67 may not be supported by the support arm portions 26, 36, 46.

In contrast, in the present embodiment, when the movable member 60 is in the regular position, a gap is formed between the movable member 60 and the restricting portion 15C without contacting, and only when the movable member 60 is lowered from the regular position by a predetermined amount, that is, Only when the cam portions 65, 66, and 67 wear out a predetermined amount, the restricting portion 15C comes into contact with the movable member 60. So with this embodiment When the connector 1 is manufactured, even if a dimensional error or an assembly error occurs, as long as the error is within the allowable range, the above-mentioned defect will not occur. As a result, the connector 1 can be easily manufactured by this embodiment.

<Second Embodiment>

In the first embodiment, the terminals in the terminal arrangement direction are not in the range. A restricting portion 15C is formed in the bottom wall 15 of the housing 10 to restrict the fall of the movable member 60 by a predetermined amount or more. This embodiment is different from the first embodiment. The point is that the restricting portion is not provided on the bottom wall as in the first embodiment, and the lower end of the movable member is not lower than the lower end of the other range to restrict the movable member from falling more than a predetermined amount. In this embodiment, the part corresponding to the first embodiment will be described with reference to the figure number of the first embodiment plus the figure number of 100, focusing on the differences from the first embodiment.

Fig. 10 is an overall perspective view showing the flat-type conductor electrical connector 101 (hereinafter simply referred to as "connector 101") of the second embodiment together with the flat-type conductor F '. The connector 101 of this embodiment includes a housing 110 that houses a flat conductor F ′ from behind, two types of terminals 120 and 130 (first terminal 120 and second terminal 130) and accessories that are arranged and held in the housing 110 from behind. 140, and a movable member 160 supported by the case 110, the terminals 120, 130, and the accessory 140.

The housing 110, similarly to the housing 10 of the first embodiment, is formed with a receiving portion 116 for receiving the flat conductor F 'at the rear opening, and a part of the movable member 160 is formed on the front end side to allow it to be accommodated. An open space 117 that allows the movable member 160 to rotate (for example, refer to FIG. 11 (D)).

The housing 110 is formed with the terminal grooves 111 and 112 and the accessory groove 113 (refer to FIG. 11) in which the terminals 120 and 130 and the accessory 140 are housed and aligned in the terminal arrangement direction. As shown in FIG. 11, the terminal grooves 111 and 112 and the accessory groove 113 include terminal upper grooves 111A, 112A, and 113A that house the upper arms 121, 131, and 141 of the terminals 120 and 130 and the accessory 140, respectively, and The terminal lower grooves 111B, 112B, and 113B received by the lower arm portions 122, 132, and 142, respectively. The mounting portions 118A, 118B, and 118C for pressing and holding the terminals 120, 130, and the fittings 140 into blocks are respectively formed. The mounting portions 118A and 118C are located further behind the connecting portions 123 and 143 of the first terminal 120 and the fittings 140 The mounting portion 118B is located further forward than the connecting portion 133 of the second terminal 130.

In the present embodiment, the bottom wall 115 has a flat surface covering the entire area in the terminal arrangement direction on the upper surface of the portion forming the open space 117, and does not have a restricting portion as in the first embodiment.

In this embodiment, the terminals 120 and 130 are used as signal terminals, and some of the terminals 120 and 130 may be used as ground terminals. As shown in FIGS. 11 (A) and (B), the terminals 120 and 130 are formed in a substantially horizontal H shape in the same manner as the first terminal 20 of the first embodiment, and each of the upper arm portions 121, 131 and the lower arm portion is formed. 122 and 132 are connected at the middle position in the front-rear direction by the connecting portions 123 and 133. Comparing FIG. 11 (A) with FIG. 11 (B), the rear ends of the upper arm portion 121 and the lower arm portion 122 of the first terminal 120 are located higher than the upper arm portion 131 and the lower arm portion of the second terminal 130. The rear end of 132 is more forward. The connection portion 126A of the first terminal 120 is formed at the front end of the lower arm portion 122, and the connection portion 137B of the second terminal 130 is formed at the rear end of the lower arm portion 132.

In this embodiment, the pressing arm portions 125 and 135 of the upper arm portions 121 and 131 of the terminals 120 and 130 also function as contact arm portions electrically connected to the flat conductor F '. When the movable member 160 is brought to the closed position, the pressing arm portions 125 and 135 of the terminals 120 and 130 are elastically displaced downward, and the flat conductors are pressed from above by the pressing portions 125A and 135A at the rear ends of the pressing arm portions 125 and 135. F ′, the pressing portions 125A and 135A are in contact with the connection circuit portion F3 ′ (refer to FIG. 10) exposed on the flat conductor F ′ with contact pressure and are electrically conducted. At the same time, the contact portions 127A and 137A at the rear end of the contact arm portions 127 and 137 of the terminals 120 and 130 have contact pressure to contact other connection circuit portions (not shown) exposed under the flat conductor F '. And the electrical continuity.

The first terminal 120 of this shape is inserted from the front toward the first terminal groove 111 of the housing 110 in the same manner as the first terminal 20 of the first embodiment, and is formed by projecting on the upper edge of the contact arm portion 127 The press-fitting protrusion 127B is press-fitted to the mounting portion 118A for mounting. On the other hand, the second terminal 130 is inserted from the rear toward the second terminal groove 112 of the housing 110, and is mounted by pressing a press-in projection 136C formed on the upper edge of the support arm portion 136 into the mounting portion 118B. .

The fitting 140 is formed in a substantially H-shape similar to the fitting 40 of the first embodiment, and the locking portion 145A provided at the rear end of the upper arm portion 141 is engaged with the flat conductor F 'to prevent the flat conductor F'. Take off drop. This attachment 140 is different from the attachment 40 of the first embodiment in which the welding fixing portion 146A is provided at the front end of the support arm portion 146 of the lower arm portion 142, and the welding fixing portion 47A is provided at the rear end of the lower arm portion 42. The pressure-receiving arm portion 144 of the upper arm portion 141 of the accessory 140 has a pressure-receiving portion 144A formed as a substantially semi-circular recess at the lower edge. This is also the same as the accessory of the first embodiment in which the pressure-receiving portion does not have such a concave shape. 40 different. The pressure receiving portion 144A is configured to receive a force from the third cam portion 167 of the movable member 160 and guide the third cam portion 167 to rotate. The fitting 140 composed in this way is inserted from the front toward the fitting groove 113 of the housing 110, and is fitted by pressing a pressing-in protrusion 147B formed on the upper edge of the straight arm portion 147 into the mounting portion 118C.

The movable member 160 has the first cam portion 165 and the second cam portion 166 at positions of the first terminal 120, the second terminal 130, and the attachment 140 in the terminal arrangement direction, similarly to the movable member 60 of the first embodiment. And the third cam portion 167. In this embodiment, not only the first terminal 120 and the accessory 140, but also the second terminal 130 has an upper arm portion 131. The pressure-receiving arm portion 134 formed in a front portion of the upper arm portion 131 receives the pressure from the second cam portion 166. Pressing pressure from above.

As shown in FIGS. 11 (A) and (C), when the movable member 160 is in the open position, the first cam portion 165 and the third cam portion 167 are opposite to each other in the same manner as the first cam portion 65 of the first embodiment. The cross-sections that are orthogonal to the terminal arrangement direction are all formed in an elongated shape extending in the front-rear direction, and the positions thereof have gaps in the vertical direction between the upper edges of the support arm portion 126 of the first terminal 120 and the support arm portion 146 of the accessory 140. Cam section 165 and 167. The rear half portions are formed as guided portions 165A and 167A, and the front half portions are formed as supported portions 165B and 167B. This is also the same as the first cam portion 65 of the first embodiment.

As shown in FIG. 11 (B), when the movable member 160 is in the open position, the second cam portion 166 is formed in a substantially rectangular shape extending in the front-rear direction. The lower edge of the rear portion of the second cam portion 166 passes through the second portion. The upper edge of the support arm portion 136 of the terminal 130 is supported from below. The second cam portion 166 has a rear end edge protruding from the upper portion thereof, and presses the pressure receiving portion 134A of the pressure receiving arm portion 134 of the second terminal 130 with the protruding portion from below during the rotation process and the closed position of the movable member 160 ( Refer to Figure 12 (B) and Figure 13 (B)).

When the movable member 160 is in the open position, the terminals in the terminal arrangement direction are not part of the range, specifically, the range outside the position of the accessory 140 outside the terminal arrangement range (hereinafter referred to as "predetermined terminal out of range"), The position of the lower edge of the movable member 160 covers the entire area in the front-rear direction than the lower edge of the range where the predetermined terminal is out of range. The front edge of the movable member 160 where the predetermined terminal is out of range has a position covering the entire area in the up-down direction, and protrudes forward more than the front edge of the range where the predetermined terminal is out of range. The continuous protruding edge portion formed by the lower edge and the leading edge of the movable member 160 where the predetermined terminal is out of range, the movable member 160 is moved downward from the regular position due to the wear of the cam portions 165, 166, and 167 of the movable member 160. In the case of an offset, the function serves as a restricting portion 168 for restricting the movable member 160 from falling more than a predetermined amount (refer to FIG. 11 (D)). Specifically, even if it shifts downward When the movable member 160 is located at any rotation angle position, the lowermost portion of the restricting portion 168 of the movable member 160 abuts on the upper surface of the abutment wall 115 to restrict the lowering of the movable member 160 by a predetermined amount or more.

The amount of protrusion of the limiting portion 168 where the predetermined terminal is out of range is a size that keeps the offset (offset from the regular trajectory) of the trajectories of the cam portions 165, 166, and 167 during the rotation of the movable member 160 within the allowable range. It is set appropriately according to the product. For example, if the amount of protrusion is set to be large, the maximum amount of lowering of the movable member 160 can be reduced.

In this embodiment, the predetermined terminal where the restricting portion 168 of the movable member 160 is formed in the terminal arrangement direction is out of range, and is a part of the range where the terminal is out of range. Instead of this method, the predetermined terminal out of range can be regarded as the terminal not in In the entire area of the range, a restricting portion is formed in the entire area where the terminal is not in the range.

The connector 101 of this embodiment configured as described above is used in the following manner and functions as follows.

First, the connector 101 is arranged at a predetermined position on a circuit board (not shown), and the connection portion 126A of the first terminal 120, the connection portion 137B of the second terminal 130, and the soldering portion 146A of the accessory 140 are respectively connected to Corresponding parts of the circuit board are soldered and fixed.

For the connector 101 mounted on the circuit board, the connection portion of the flat conductor 'is inserted into the receiving portion 116 in a state where the movable member 160 is brought to the upright open position as shown in FIG. 11. The connection portion of the flat conductor F 'is easily inserted between the pressing arm portion 125 and the contact arm portion 127 of the first terminal 120 and the second terminal 130 Between the pressing arm portion 135 and the contact arm portion 137, and between the locking arm portion 145 and the straight arm portion 147 of the accessory 140.

Then, 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 is in sliding contact with the upper edge of the support arm portion 136 of the second terminal 130. By this sliding contact, the center of rotation of the movable member 160 is moved upward. As a result, the first cam portion 165 presses and shifts the pressure receiving arm portion 124 of the first terminal 120 upward, and the third cam portion 167 moves the The pressure-receiving arm portion 144 is pressed and displaced upward. As in the first embodiment, the first cam portion 165 and the third cam portion 167 are provided between the support arm portion 126 of the first terminal 120 and the support arm portion 146 of the attachment 140 after the movable member 160 starts to rotate, respectively. Clearance without sliding contact with the support arm portions 126, 146. Therefore, the second cam portion 166 and the support arm portion 136 are brought into sliding contact with each other under a large contact pressure, and the second cam portion 166 is likely to be worn.

When the movable member 160 is rotated from the open position, as shown in FIG. 12, the first cam portion 165 abuts the upper edge of the support arm portion 126 and the third cam portion 167 abuts the upper edge of the support arm portion 146. During the rotation process after this point in time, all the cam portions 165, 166, 167 are in sliding contact with the upper edges of the support arm portions 126, 136, 146. This reduces the contact pressure between the second cam portion 166 and the support arm portion 136. During this rotation, 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 to reach a predetermined rotation In the dynamic angular position, the upward displacement of the pressure-receiving arm portions 124, 134, and 144 becomes the maximum. As a result, each of the pressing arm portions 125, 135 and the locking arm portion 145 has the maximum displacement and moves downward. Bit. As in the first embodiment, when the movable member 160 is rotated beyond the rotation angle position, a click feeling is generated.

When the movable member 160 is further rotated to the closed position, as shown in FIG. 13, the lower edges (leading edges when in the open position) of the cam portions 165, 166, and 167 are supported by the support arm portions 126, 136, and 146. , The movable member 160 is maintained in the above-mentioned closed position. As a result, as shown in Figs. 13 (A) and (B), the pressing portions 125A and 135A of the terminals 120 and 130 have a contact pressure contacting the connection circuit portion of the corresponding flat conductor F 'from above and are electrically conductive. 127A and 137A are in electrical contact with the connection circuit portion of the corresponding flat conductor F 'from below with contact pressure. As shown in FIG. 13 (C), the locking state between the locking portion 145A of the locking arm portion 145 of the attachment 140 and the leading edge of the locked portion F2 'of the flat conductor F' is maintained, and the flat can be reliably prevented The type conductor F 'comes off.

As shown in FIG. 11 (D), FIG. 12 (D), and FIG. 13 (D), the movable member 160 is in the normal position and at any rotation angle position from the open position to the closed position. A gap is formed between the restricting portion 168 of the movable member 160 and the bottom wall 115 of the housing 110, and the movable member 160 does not come into sliding contact with the bottom wall 115.

However, when the cam portions 165, 166, and 167 are worn out repeatedly by rotating operation of the movable member 160, the cam portions 165, 166, 167, and the movable member 160 are biased downward from the regular position due to the amount of wear. shift. In this embodiment, when the cam portion 165, 166, 167 wears and the movable member 160 shifts downward from the regular position at any rotation angle position of the movable member 160 from the open position to the closed position, the predetermined terminal is out of range. The lower end of the restricting portion 168 of the movable member 160 is in contact with the upper surface of the bottom wall 115 of the housing 110. Thus, the fall of the movable member 160 by more than a predetermined amount is restricted, and further wear of the cam portions 165, 166, 167 is prevented. As described above, the amount of protrusion of the restricting portion 168 is set to a size that keeps the track offset (offset from the normal track) of the cam portions 165, 166, and 167 of the cam member 165 during the rotation process, and as a result, So that the movable member 160 does not fall too much from the regular position, and can be maintained well: the operating feeling of the movable member 160, the contact pressure or electrical conduction state of the flat conductor F 'and the terminals 120, 130, and the flat conductor F' Engagement status with the accessory 140 and the like.

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, as long as a plurality of terminals held in a connector array have a lower arm portion, at least a portion of the lower arm portion has a support arm portion, at least a portion of the plurality of terminals has an upper arm portion, and the upper arm portion has a pressing arm portion. With the structure, the present invention is applicable. It is not necessary to provide two types of terminals having different shapes, and all the terminals may have the same shape, and three or more types of terminals having different shapes may be provided.

In the first and second embodiments, a plurality of types of cam portions having different shapes from each other are provided in the movable member, and instead of this mode, all the cam portions having the same shape may be provided.

Claims (3)

An electrical connector for a flat conductor is arranged on a mounting surface of a circuit substrate, and the flat conductor is inserted and pulled in a direction parallel to the mounting surface, that is, a front-rear direction. The above-mentioned electrical connector for a flat conductor has: a shell The housing, a plurality of terminals, and a movable member; the housing is formed with a rearwardly opened receiving portion for receiving the flat conductor inserted forward; and the plurality of terminals are made of a metal plate member that maintains a flat plate surface. A direction at a right angle to the board surface is arranged and held in the housing as a terminal arrangement direction; the movable member is movable with rotation: an open position where a flat conductor can be inserted into the housing and the flat surface is pressed. Between the closed positions of the type conductor; the housing allows the movable member to be moved further forward than the accommodating portion, and the movable member has a cam that operates in conjunction with the terminal in the terminal arrangement direction and at a position corresponding to the terminal The plurality of terminals have a lower arm portion extending forward and backward in a position on the bottom wall side of the housing. A lower arm portion of at least a part of the lower arm portions of the plurality of terminals has a support portion at a front end side, the support portion is used to support the cam portion of the movable member from below, and at least a portion of the plurality of terminals, In addition to the lower arm portion, it also has an upper arm portion; the upper arm portion is connected to the lower arm portion by a connecting portion at a middle position in the front-rear direction of the lower arm portion, and the position on the upper wall side of the housing faces the front-rear direction Extending, the upper arm portion includes, on a front end side thereof, a pressure receiving portion capable of being elastically displaced upward by receiving a force from the cam portion of the movable member, and the upper arm portion includes, on a rear end side thereof, a portion corresponding to the pressure receiving portion. A pressing portion that elastically shifts downwardly and presses the flat conductor from above to increase the contact pressure between the flat conductor and the terminal; when the movable member is at least in the process of moving, Terminals with different terminal positions are out of range. At least some of the predetermined terminals are out of range. The movable member may be in the vertical direction abuts on the bottom wall. For example, the electrical connector for a flat conductor in the first scope of the patent application, wherein the bottom wall of the housing is above the bottom wall where the predetermined terminal is out of range, and is located beyond the predetermined terminal out of range. The top of the bottom wall is further above. For example, the electrical connector for a flat conductor according to item 1 or 2 of the scope of patent application, wherein the movable member has a predetermined terminal outside the lower end of the movable member in the range, and is located below the lower end of the cam portion.