TWI523339B - Electrical connectors for flat conductors - Google Patents

Description

Flat conductor electrical connector

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

As the flat type guide system, there are a flexible substrate (FPC), a flat cable, and the like. Most of such flat conductors are connected to an electrical connector mounted on a circuit board. As a connector that can be connected to such a flat type conductor, for example, a connector disclosed in Patent Document 1 is known.

The terminal (contact) of the connector of Patent Document 1 is formed by maintaining a flat plate surface of a metal plate, and is arranged in a plurality of directions perpendicular to the thickness of the plate. The terminal has a beam portion (an upper beam portion and a lower beam portion) which are substantially parallel to each other at the upper and lower positions, and the two are connected by a connecting portion at an intermediate portion in the longitudinal direction thereof. The lower beam portion is fixed to the right end side portion of the connecting portion by the bottom wall of the outer casing.

Patent Document 1 having such a terminal has a movable member (actuator) supported to be rotatable from an open position toward a closed position, and a flat conductor when the movable member is in an open position The movable member having the cam portion between the two beam portions is rotated toward the closed position from the one end side of the longitudinal direction, and the cam member is pressed by the cam portion. On the other end side of the upper beam portion, one end side of the upper beam portion is elastically displaced toward one of the lower beam portions by a lever principle to press the flat conductor to the lower beam portion.

In Patent Document 1, the cam portion includes two kinds of cam portions, and different cam portions are alternately located in a plurality of terminals of the same shape arranged. Each of the cam portions has a circular portion in which the upper portion is circularly guided to the upper beam portion, and an arm portion that is formed as a lower portion integrally with the circular portion. The circular portion is housed in a concavely curved rotation support portion formed on the upper beam portion, and is supported while being guided by rotation. The arm portion has an arm length larger than a radius of the circular portion and extends in a direction toward the lower beam portion, and abuts against the lower beam portion to move the contact point by rotation of the movable member. A side of the arm portion that abuts against the lower beam portion forms a sliding portion that connects the two straight portions by the arc portion. The two cam portions have the same shape in the circular portion and the sliding portion, and when the movable member is at the open position, whether or not the portion different from the arm portion of the cam portion has a gap with the upper beam portion Different forms.

According to Patent Document 1, even in the cam portions of the two types, the circular portions and the sliding portions of the cam portions disposed corresponding to the respective terminals are identical to each other, and the same cam displacement amount is applied to the same-shaped terminal. The beam is displaced. The circular portion of the upper portion of the cam portion has a cam radius which is the same regardless of the angle, so that it rotates about the axis of rotation passing through the center thereof, and when the arm portion constituting the lower portion rotates around the rotation axis, the slip is reached. The distance from the contact point of the contact portion with the lower beam portion, that is, the radius of the cam changes, and the amount of the increase is transmitted through the circular portion to elastically displace the upper beam portion. At this time, the position of the rotation axis is moved upward by the above increase amount.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-095323

In such a connector, it is required to suppress the height of the upper and lower sides to be small, and on the other hand, it is required to increase the change in the amount of displacement of the cam, in order to obtain a feeling that the movable member is reliably rotated from the open position to the sense The feeling of the buckle when closing the position. However, in the connector of Patent Document 1, as the circular portion of the upper portion of the cam portion, since the cam is equal in radius regardless of the rotational angle, only the rotational guidance of the cam portion is performed, the upper portion The amount of cam shift is not obtained by itself. Therefore, the amount of cam shift depends on the amount of cam shift of the sliding portion of the lower portion, and the amount of cam shift in the lower portion is increased, which makes the height dimension of the connector large. As a result, the connector of Patent Document 1 cannot expect to increase the amount of cam shift in the cam portion. The amount of displacement of the cam cannot be increased, which means that the change of the displacement amount before and after the position of the rotation angle of the movable member during the maximum displacement during the rotation is small, which causes the buckle feeling of the movable member immediately before reaching the closed position. small.

The present invention has been developed in view of such circumstances, and an object of the present invention is to provide a buckle feeling that can be largely ensured before reaching a closed position when the movable member is rotated toward a closed position without increasing the height dimension of the connector. (click) electrical connector for flat conductors.

The flat connector electrical connector of the present invention includes: a plurality of terminals which are provided with an outer shape while maintaining a flat plate surface of the metal plate; and an outer casing which is perpendicular to the plate faces The plurality of terminals are held at a predetermined interval; and the movable member is movable in rotation between an open position at which the flat conductor can be inserted into the outer casing and a closed position at which the flat conductor is pressed; the terminal has a pressing arm portion The upper arm side of the outer casing extending in the longitudinal direction of the insertion direction of the flat conductor; and the support arm portion is coupled to the pressing arm portion by a connecting portion at an intermediate position in the longitudinal direction of the pressing arm portion And extending toward the longitudinal direction and on the bottom wall side of the outer casing; the pressing arm portion has a pressing contact portion for pressing the flat conductor on one end side of the insertion side of the flat conductor, and the other end side a pressure receiving portion that is elastically deformable by receiving a force from the cam portion of the movable member when the movement of the movable member to the closed position is completed; and the pressing arm portion is The pressure receiving portion receiving the force from the cam portion of the pressure receiving portion on one side of the inner generated surface of the terminal plate with the elastic displacement of the contact pressure and causes the flat conductive.

In an electrical connector for a flat conductor, the invention is characterized by The terminal has at least two types of the first terminal and the second terminal which are arranged in the terminal arrangement direction, and the first terminal has a first pressing arm portion on the one end side with respect to the connecting portion in the longitudinal direction. a first pressing portion is formed, and a first pressure receiving portion is formed on the other end side; and a first support arm portion; and the second terminal portion has a second pressing arm portion that is formed on the one end side with respect to the connecting portion a second pressing portion is formed on the other end side; and a second supporting arm portion; and the movable member has a first working direction with the first pressure receiving portion at a position corresponding to the first terminal in the terminal arrangement direction a cam portion having a second cam portion cooperating with the second pressure receiving portion at a position corresponding to the second terminal; the first cam portion abutting the first pressing arm centering on a rotation axis of the movable member a cam surface that is rotated and guided by the first pressure receiving portion, and a first upper abutting point is formed with the first pressure receiving portion; and the second cam portion is formed such that the rotation axis of the second cam portion is at The rotation axis of the first cam portion On the extension line, and during the rotation of the movable member toward the closed position, the upper cam surface that presses the second pressure receiving portion of the second pressing arm portion; and the second support arm portion or the outer casing that presses the other end side a lower cam surface of a portion of a cam radius of the bottom wall; and a first upper abutment point and a rotation axis that abuts the first cam portion against the first pressure receiving portion when viewed from an extending direction of the rotation axis The neutral line, the second cam portion has a second lower abutment point for abutting the lower cam surface to the second support arm portion or the bottom wall of the outer casing, and abutting the upper cam surface against the second pressing arm portion At least one of the second upper abutment points of the second pressure receiving portion is in the shape of a cam that moves through the neutral line during the rotation of the movable member from the open position to the closed position.

In the invention thus constituted, acting on the first terminal The first cam portion is rotated by the first pressing arm portion, and the first cam portion is rotated by the first pressing arm portion while moving the rotational axis position up and down. That is, in the process of rotating the movable member about the rotation axis of the cam portion, the position of the rotation axis thereof moves up and down, but does not move in the left-right direction which becomes the longitudinal direction, and can be stably rotated. .

On the other hand, the second cam portion acting on the second terminal uses the cam surface and the lower cam surface of the second cam portion to ensure the amount of cam shift to increase the total cam shift amount, based on the larger The total cam shift amount is such that the abutment point on the support arm portion of the second terminal and the lower cam surface passes over the neutral line and moves in the longitudinal direction, so that the buckle feeling becomes large.

As described above, the present invention utilizes the first cam portion to rotate the movable member in a state where the position of the rotation axis is stabilized, and the second cam portion obtains a large buckle feeling at a large total cam shift amount.

In the present invention, the second cam portion may have a second upper abutment point for abutting the upper cam surface against the second pressure receiving portion of the second pressing arm portion, and the rotation of the movable member from the open position to the closed position The shape of the cam that moves through the above neutral line during the process. Thereby, since the upper abutment point of the cam surface on the second cam portion also moves over the neutral line, the buckle feeling can be obtained at the upper abutment point in addition to the buckle feeling of the lower abutment point.

Further, in the invention, the second cam portion simultaneously positions the second upper abutment point of the maximum cam shift amount of the upper cam surface and the second lower abutment point of the maximum cam shift amount of the lower cam surface. Neutral line. Thereby, since the second upper abutment point and the second lower abutment point are simultaneously located on the center line The total cam shift amount becomes maximum, and the buckle feeling at the upper abutment point and the lower abutment point can be obtained at the same time, so that the overall buckle feeling becomes large.

According to the present invention, as described above, the first terminal performs the rotation guidance of the first cam portion and stabilizes the position of the rotation axis thereof, and the second cam portion acting on the second terminal is on the upper cam thereof. Both the surface and the lower cam surface generate a cam shift amount, and the total cam shift amount is increased by the cam displacement of both sides, and the shift amount of the abutment point is larger than the neutral line when the lower cam surface is under the neutral cam surface. A larger buckle feel can be obtained.

1‧‧‧Connector

2‧‧‧Connector body

3‧‧‧ movable components

10‧‧‧ Shell

11‧‧‧First terminal slot

11A‧‧‧first terminal upper slot

11B‧‧‧First terminal lower slot

12‧‧‧Second terminal slot

12A‧‧‧Second terminal upper slot

12B‧‧‧Second terminal lower slot

13‧‧‧Accessory slot

13A‧‧‧Accessory upper slot

13B‧‧‧Fitting lower slot

14‧‧‧上壁

15‧‧‧ bottom wall

16‧‧‧ Receiving opening

17‧‧‧Open space

18B, 18C‧‧‧Location Restriction Department

19A, 19B, 19C‧‧‧ Fixed Department

20‧‧‧First terminal

21‧‧‧First pressing arm

22‧‧‧First support arm

23‧‧‧ First Link

24‧‧‧First pressure arm

24A‧‧‧First Pressure Department

25‧‧‧First flexible arm

25A‧‧‧First press

26‧‧‧First front fixed arm

27‧‧‧First rear support arm

27A‧‧‧First Support

27B‧‧‧dun

28‧‧‧Uplift

29‧‧‧First connection

29A‧‧‧The first fixed department

30‧‧‧second terminal

31‧‧‧Second pressing arm

32‧‧‧Second support arm

33‧‧‧Second Link

34‧‧‧Second pressure arm

34A‧‧‧Second pressure department

35A‧‧‧Second press

36‧‧‧Second front fixed arm

36B‧‧‧ card stop

37A‧‧‧Second flexible support arm

37A-1‧‧‧Second support

37B‧‧‧Second rear fixed support arm

38‧‧‧Cam support

38A‧‧‧Cam abutment

39‧‧‧Second connection

39A‧‧‧Second fixed department

40‧‧‧Accessories

41‧‧‧ upper arm

42‧‧‧ Lower arm

45A‧‧‧Card

49A‧‧‧Cards

51‧‧‧Operation Department

52‧‧‧First groove

53‧‧‧Second trough

54‧‧‧ third slot

55‧‧‧First cam section

56‧‧‧Second cam section

56A‧‧‧Upper cam surface

56B‧‧‧ lower cam surface

56B-1‧‧‧Front lower cam surface

56B-2‧‧‧ rear lower cam surface

56B-3‧‧‧Middle lower cam surface

57‧‧‧ Third cam department

58‧‧‧Transfer area

C‧‧‧ gap

F‧‧‧flat conductor

F1‧‧‧Connected Circuits Department

F2‧‧‧ reinforcing sheet

F3‧‧‧The locked part

F4‧‧‧ solder pad

F4A‧‧‧Front pad

F4B‧‧‧ rear row pad

P‧‧‧ second arrival point

Q‧‧‧ second contact point

Surrounding area of S‧‧

W‧‧‧Substrate

X‧‧‧ axis of rotation

Z‧‧‧Neutral line

Fig. 1 is a perspective view showing the appearance of a connector of an embodiment of the present invention and a front end portion of a flat conductor connected to the connector.

Fig. 2 is a cross-sectional view of the movable member of the connector of Fig. 1 in a position parallel to the plate surface of the terminal in the open position, and Fig. 2(A) shows the first terminal position, and Fig. 2(B) shows the first terminal position. The second terminal position is displayed, and the second figure (C) shows the accessory position.

Fig. 3 is a cross-sectional view showing the movable member of the connector of Fig. 1 in a plane parallel to the plate surface of the terminal at the position of the rotation process, and Fig. 3(A) shows the position of the first terminal, and Fig. 3(B) shows the position of the first terminal. The second terminal position is displayed, and Figure 3 (C) shows the position of the accessory.

Figure 4 is a view showing the movable member of the connector of Figure 1 in the closed position A cross-sectional view of a plane parallel to the plate surface of the terminal, Fig. 4(A) shows the first terminal position, Fig. 4(B) shows the second terminal position, and Fig. 4(C) shows the accessory position.

Fig. 5 is a cross-sectional view showing the movement of the first terminal of the connector of Fig. 1, and Fig. 5(A) shows the state in which the movable member is in the open position, which is the same as Fig. 2(A). Fig. 5(B) shows a state in which the movable member comes to the closed position after the flat type conductor is inserted.

Fig. 6 is a view showing the behavior of the second cam portion of the movable member, Fig. 6(A) showing the virtual state of the position of the fixed rotation axis, and Fig. 6(B) showing the actual state of the positional movement of the rotation axis. .

Fig. 7 (A) to (D) show a variation of the projection of the first terminal.

Fig. 8 is a cross-sectional view showing the connector of Fig. 1 cut at the position of the first terminal, Fig. 8(A) shows the presence of the first terminal, and Fig. 8(B) shows only the first terminal. The outer casing to be removed.

Fig. 9 is a view showing the positional relationship with the outer casing due to the difference in shape of the transition portion of the movable member. Fig. 9(A) shows the present embodiment, and Fig. 9(B) shows a conventional example for comparison.

Fig. 10 is a view showing the behavior of the upper and lower abutment points of the second cam portion of the movable member, and Fig. 10(A) is the same as Fig. 6(B), and Fig. 10(B) to (D) are shown. Change example.

Hereinafter, embodiments of the present invention will be described based on the drawings.

Fig. 1 is a perspective view showing the appearance of the connector of the embodiment and the front end portion of the connection portion of the flat conductor connected to the connector.

In Fig. 1, reference numeral 1 denotes a flat conductor electrical connector of the present embodiment, and F denotes a flat conductor connected to the connector 1.

The flat conductor F has a connection portion with the connector 1 at its front end portion (the upper right edge portion of the portion close to the connector 1 in the drawing), and is a long distance toward the rear (lower left in FIG. 1). The ground extends, but in the figure, the portion immediately before the connecting portion is displayed, and the illustration is omitted from the rear. In the present embodiment, the flat conductor F has the upper surface of the front end portion removed, and the connection circuit portion F1 is exposed to constitute the connection portion. The connecting portion is provided with a reinforcing sheet F2 on the lower surface in order to increase the strength at the time of connection with the connector.

In the connecting portion of the flat conductor F, the locked portion F3 is formed by the notch portion on both side edges in the width direction. The notch-shaped engaged portion F3 is inserted into and locked by a claw-shaped locking portion formed in a fitting to be described later, and contributes to prevention of fall-off of the flat conductor F.

The connection circuit portion F1 of the connection portion of the flat conductor F is provided with a pad F4 formed in each of the plurality of wiring portions arranged in the width direction, and the pads F4 are alternately arranged one behind the other. Jagged front row of pads F4A and rear row of pads F4B. The front row of pads F4A and the two types of terminals (first terminal 20) which are described later in the connector 1 The second terminal 30 is connected to the second terminal 30), and the rear pad F4B is connected to the first terminal 20. Hereinafter, "first" is attached to one of the first terminals or another member corresponding to the first terminal. The second terminal is also the same, with the second letter attached.

On the other hand, the connector 1 is composed of a connector body 2 and a movable member 3 supported by the connector body 2 (see also FIG. 2).

The connector body 2 has: a casing 10 composed of an electrically insulating material; and two terminals of the first terminal 20 and the second terminal 30 which are formed by maintaining the flat surface of the metal plate and held by the casing 10; The fittings 40, which are made of a metal plate and held by the outer casing 10, are similar to the terminals. The first terminal 20, the second terminal 30, and the accessory 40 for these will be described in detail later.

The outer casing 10 is formed by molding an electrically insulating material, and has a substantially rectangular parallelepiped shape which is long in the width direction of the flat conductor F and has a small height dimension, and is formed alternately in the width direction in the front and rear directions. A first terminal groove 11 and a second terminal groove 12 in a slit shape. In the first terminal groove 11 and the second terminal groove 12 of the two types, the first terminal 20 and the second terminal 30 are respectively inserted and held, and the arrangement range of the terminals is formed in the width direction. On the outer side of the arrangement range of the terminals, a fitting groove 13 for holding the fitting 40 in the same manner as the first and second terminal grooves 11 and 12 is formed in the front-rear direction.

As described above, the first terminal 20, the second terminal 30, and the accessory 40 are maintained in a relationship in which the flat surface of the metal plate is maintained. The first terminal groove 11, the second terminal groove 12, and the fitting groove 13 are formed such that the groove width in the terminal arrangement direction is substantially the same as the thickness of each of the first terminal 20, the second terminal 30, and the fitting 40. In the second drawing (A), (B), and (C), the groove width is the direction perpendicular to the paper surface.

The first terminal groove 11, the second terminal groove 12, and the fitting groove 13 are formed in the upper wall 14 and the bottom wall 15 of the outer casing 10 as shown in Figs. 2(A), (B) and (C), respectively. The direction runs through the front and rear directions (right and left in the figure). The first terminal groove 11, the second terminal groove 12, and the fitting groove 13 are connected to each other at the center in the height direction by the rear portion, and are connected by a communication groove extending in a direction perpendicular to the paper surface of the second drawing. The communication groove is formed with a receiving opening 16 that opens rearward, and the connecting portion of the flat conductor F described above can be introduced into the receiving opening 16. In this manner, the first terminal groove 11, the second terminal groove 12, and the fitting groove 13 are separated into upper and lower portions by the receiving opening portion 16 and formed on the lower surface and the bottom wall of the upper wall 14, respectively. The upper surface of 15 has a first terminal upper groove 11A and a first terminal lower groove 11B, a second terminal upper groove 12A and a second terminal lower groove 12B, a fitting upper groove 13A, and a fitting lower groove 13B.

The first terminal groove 11, the second terminal groove 12, and the fitting groove 13 are also communicated at the front portion thereof. That is, the first terminal groove 11, the second terminal groove 12, and the front portion of the fitting groove 13 are communicated by the open space 17 formed above the bottom wall 15 of the outer casing 10. Thus, the upper wall 14 is notched at the front portion, and the open space 17 is The movable member 3 is disposed and rotated. The upper wall 14 is in the direction in which the terminals are arranged, and the position of the fitting groove 13 on both end sides is also as shown in FIG. 2(C), and has a notch portion at the rear portion, and the fitting 40 can be oriented accordingly. Full elastic displacement above the part.

The second terminal groove 12 and the fitting groove 13 are provided in the front-rear direction, and the portion between the open space 17 at the front portion and the receiving opening portion 16 at the rear portion is provided with the upper wall 14 and the bottom wall in the up-and-down direction. The position regulating portions 18B and 18C formed in an island shape between 15 are used to connect the opposing inner faces of the respective grooves. The position regulating portions 18B and 18C provided in the second terminal groove 12 and the fitting groove 13 are at the same position in the front-rear direction, and the first terminal groove 11 is not provided with the position regulating portion.

In the terminal arrangement direction, portions of the bottom wall 15 corresponding to the first terminal groove 11, the second terminal groove 12, and the fitting groove 13 are formed by fixing the first terminal 20, the second terminal 30, and the fitting 40 which will be described later. Fixed part. The fixing portion 19A in the first terminal groove 11 is formed such that the thickness of the front end portion of the bottom wall 15 is formed as a tapered portion, and the fixing portions 19B and 19C of the second terminal groove 12 and the fitting groove 13 are such that the rear end portion of the bottom wall 15 is formed. The thickness is formed by a tapered portion.

The first terminal 20, the second terminal 30, and the fitting 40 which are inserted and held toward the first terminal groove 11, the second terminal groove 12, and the fitting groove 13, respectively, are produced while maintaining a flat plate surface of the metal plate. The first terminal 20 and the second terminal 30 have the pressing arm portions 21 and 31 located above and the supporting arm portions 22 and 32 located below, respectively, in the front-rear direction. Middle of the company The nodes 23 and 33 are connected. Further, the fitting 40 has an upper arm portion 41 located above and a lower arm portion 42 located below, and the two are connected by a connecting portion 43 located at the intermediate portion. The connecting portion 33 of the second terminal 30 and the connecting portion 43 of the fitting 40 are located further rearward than the respective position restricting portions 18B and 18C.

As shown in Fig. 2(A), the first terminal 20, the first pressing arm portion 21 located above, extends to the vicinity of the rear end of the casing 10, but the front portion thereof extends only to a position forward of the front end. The first pressing arm portion 21 is configured as a first pressure receiving arm portion 24 further than the first coupling portion 23, and is configured as a first flexible arm portion 25 at a rear side. The first pressure receiving arm portion 24 is formed with a concave first pressure receiving portion 24A at its lower edge, and a first pressing portion 25A that protrudes downward is provided at the rear end of the first flexible arm portion 25. The first pressure receiving portion 24A has a substantially semicircular concave shape and functions as a guide portion for guiding a cam of the movable member 3 to be described later. When the first pressure receiving portion 24A receives the upward force from the movable member 3 to be described later, the first pressure receiving portion 21A uses the principle of the lever to make the first portion of the first connecting portion 23 as a fulcrum. A flexible arm portion 25 is deflected downward and inclined.

The first support arm portion 22 of the first terminal 20 extends the rear portion to the same position as the flexible arm portion 25 of the upper arm portion 21 in the front-rear direction, so that the front portion faces the first pressing arm portion 21 A pressure receiving arm portion 24 extends further forward and has its front end projecting toward the outside of the outer casing. The first support arm portion 22 has a first front fixed arm portion 26 and a first rear support arm portion 27 in front and rear with respect to the position of the first joint portion 23. First front fixed arm 26 includes a ridge portion 28 that is raised in a mountain shape toward the upper portion in the intermediate portion of the connecting portion 23 in the front-rear direction, and a first connecting portion 29 that protrudes outward toward the outer casing.

The first connecting portion 29 is bent downward so as to have a lower edge located below the bottom surface of the bottom wall 15 of the outer casing 10, and the lower edge is in surface contact with the corresponding circuit surface of the circuit substrate. And can be welded. The first connecting portion 29 is formed with a first groove-shaped first fixed portion 29A on the trailing edge side thereof, and the first fixed portion 29A is tapered toward the bottom wall 15 of the outer casing 10 as described above. The fixing portion 19A is press-fitted to function to fix the first terminal 20 to the outer casing 10.

The first rear support arm portion 27 of the first support arm portion 22 of the first terminal 20 extends rearward from the position of the first joint portion 23 to a position corresponding to the first pressing portion 25A of the first press arm portion 21. . The first rear support arm portion 27 is inclined upward toward the rear to form a gradually expanding gap C between the bottom wall 15 and the outer casing. A rear end of the first rear support arm portion 27 is provided with a first support portion 27A that faces the first pressing portion 25A of the first pressing arm portion 21 and protrudes upward. Further, the first rear support arm portion 27 is formed with a projection 27B that protrudes downward in a position corresponding to the first pressing portion 25A in the front-rear direction. The first pressing portion 25A and the first supporting portion 27A which are disposed in the opposite direction are sandwiched by the flat type conductor F, but when the connecting circuit portion F1 is provided on the upper surface of the flat conductor F as in the first drawing, The first pressing portion 25A is electrically connected to the connecting circuit portion F1, and the lower surface is formed with a connection. When the circuit portion is connected, the first support portion 27A is electrically connected, and when the connection circuit portion is formed on both sides, both of them are electrically connected to the connection circuit.

The first terminal 20 thus formed is inserted into the first terminal groove 11 from the front toward the rear. When inserted into a predetermined position, the first fixed portion 29A of the first front fixed arm portion 26 is fixed by the fixing portion 19A fitted to the bottom wall 15 of the outer casing 10, and the first terminal 20 is prevented from coming off. Further, the first terminal 20 is in the first terminal groove 11, and the first pressing arm portion 21 is pressed by the lower surface of the upper wall of the casing 10 in the vicinity of the front-rear direction connecting portion 23, and the first supporting arm portion 22 is caused. Pressed by the upper surface of the bottom wall 15, and sandwiched by the upper wall 14 and the bottom wall 15, it is also prevented from falling off.

As shown in FIG. 2(B), the second terminal 30 extends the second pressing arm portion 31 forwardly to the vicinity of the front end of the casing 10 and extends only to the first pressing arm portion 21 of the first terminal 20 at the rear. Shorter intermediate position. The second pressing arm portion 31 is configured to be a second pressure receiving arm portion 34 further than the second coupling portion 33, and is configured as a second flexible arm portion 35 at the rear side. The second pressure receiving arm portion 34 has a plurality of second pressure receiving portions 34A that are concavely curved and have a horizontally long front and rear direction at the lower edge thereof, and a second protruding end portion is provided at the rear end of the second flexible arm portion 35. Two pressing portions 35A. The first pressure receiving portion 24A of the first terminal 20 is substantially semicircular, and the second pressure receiving portion 34A is formed in a linear shape extending forward and backward in the intermediate portion in the front-rear direction. In the second pressing arm portion 31, when the second pressure receiving portion 34A receives the upward force from the cam portion of the movable member 3 to be described later, the position of the second connecting portion 33 can be utilized by the lever principle. Pivot point makes the above The flexible arm portion 35 is bent downward and inclined.

The second support arm portion 32 of the second terminal 30 extends the front portion to a more forward position than the second pressure receiving arm portion 34 of the second pressing arm portion 31 in the front-rear direction, and the rear portion is longer than the second connecting portion 33. Further, the second flexible support arm portion 37A and the second rear fixed support arm portion 37B are further divided toward each other and extend rearward, and the front portion extends further forward than the second joint portion 33 and forms a second portion. The front arm portion 36 is fixed, and the rear end of the second rear fixed support arm portion 37B is protruded toward the outside of the outer casing. The second support arm portion 32 has a second front fixed arm portion 36 at the front side with respect to the position of the second joint portion 33 as described above, and has the second front fixed arm portion 36 and the second rear fixed portion in front and rear. Arm 36B. The second front fixed arm portion 36 has a linear cam supporting portion 38 formed on the upper edge of the front portion thereof. The second flexible support arm portion 37A is provided with a second support portion 37A-1 that protrudes in the front-rear direction from the same position as the second pressing portion 35A and that faces upward.

The second pressing portion 35A and the second supporting portion 37A-1 that face each other are similar to the case of the first terminal 20, and the flat type conductor F is sandwiched, and which one is used for electrical connection with the flat type conductor, and is used. Both are also available.

The cam supporting portion 38 of the second front fixed arm portion 36 is such that the upper edge is located at the same or lower than the lower edge of the island-shaped position regulating portion 18B of the outer casing 10, and is formed to be laterally extended. The cam edge of the linear edge abuts the portion 38A. The cam abutting portion 38A is formed to extend forward and backward from the second pressure receiving portion 34A in the front-rear direction. Within the scope.

The second front fixed arm portion 36 is formed to protrude upward from a position corresponding to the position regulating portion 18B of the outer casing 10 between the cam abutting portion 38A and the second connecting portion 33 in the front-rear direction. The locking projection 36B.

In the second terminal 30, as described above, the second connecting portion 39 is provided at a rear end portion on the opposite side of the first connecting portion 29 of the first terminal 20 in the front-rear direction.

The second connecting portion 39 provided at the rear end of the second rear fixed support arm portion 37B protruding toward the outer side of the outer casing is bent downward and extended in such a manner as to have a lower edge located below the bottom surface of the bottom wall 15 of the outer casing 10 And the lower edge is in surface contact with the corresponding circuit surface of the circuit board and can be soldered. The second connecting portion 39 is formed with a second fixed portion 39A having a slit groove shape on the front edge side thereof, and the second fixed portion 39A is press-fitted toward the tapered fixing portion 19B of the outer casing 10 described above. The function of fixing the second terminal 30 to the outer casing 10 is exerted.

The second terminal 30 thus formed is inserted into the second terminal groove 12 from the rear toward the front. When inserted into the predetermined position, the second front fixed arm portion 36 of the second support arm portion 32 penetrates between the bottom wall 15 of the outer casing 10 and the island-shaped position restricting portion 18B to be formed on the second front fixed arm portion. The locking projection 36B of the 36 bites into the lower edge of the position restricting portion 18B, and the second fixed portion 39A of the second rear fixed supporting arm portion 37B can be fixed by the fixing portion 19B of the bottom wall 15 of the outer casing 10. It is fixed and prevents the second terminal 30 from coming off.

As shown in FIG. 2(C), although the fitting 40 is shaped to remove the second flexible supporting arm portion 37A from the second terminal 30, the difference is in comparison with the second terminal 30. The upper arm portion 41 corresponding to the second pressing arm portion 31 of the second terminal 30 is formed in the same shape as the second pressing portion 35A of the second terminal 30, and the locking portion 45A located at the rear end of the second terminal 30 is formed. However, the formation is larger; and the rear end portion of the lower arm portion 42 corresponding to the second rear fixed support arm portion 37B of the second terminal 30 has a large locking portion 49A that protrudes upward. Others, similarly to the second terminal 30, the symbol "10" in the symbol of the second terminal 30 is abbreviated as "40".

The locking portion 45A and the locking portion 49A of the fitting 40 are configured to have a large hook shape and protrude downward and upward, respectively, and the leading edge is formed to be substantially perpendicular to the front-rear direction, and the rear edge is directed toward the lower end and the upper end, respectively. It is formed as a slanting edge. The upper casing wall 14 is provided with a large notch above the flexible arm portion 45 of the upper arm portion 41 in which the locking portion 45A is formed, so that the above-mentioned locking is pressed by the front end of the inserted flat conductor F The portion 45A is elastically deflected so as to be inclined upward, and the flat conductor F can be further inserted into a predetermined position.

In this manner, the first terminal 20, the second terminal 30, and the fitting 40 can be held by the connector body 2 formed by the outer casing 10, and the movable member 3 can be supported to be movable, and in the present embodiment, it can be rotatably supported.

As shown in Fig. 1, the movable member 3 is formed by using the same electrical insulating material as that of the outer casing 10 as a substantially full width of the outer casing 10. Made by pieces.

The movable member 3 is rotatably supported between the open position shown in Fig. 2 via the intermediate position shown in Fig. 3 and the closed position shown in Fig. 4 . In Fig. 2, the rotational axis X of the movable member 3 is located in the lower half of the movable member 3, and the lower half is housed in the open space 17 formed in the front portion of the outer casing 10. In the second drawing, the upper half which is located outside the open space 17 and protrudes upward from the upper wall 14 of the casing 10 serves as an operation portion 51 for the user to rotationally operate the movable member 3.

The lower half of the movable member 3 in Fig. 2 is in the width direction of the movable member 3 (the terminal arrangement direction and the direction perpendicular to the paper surface in Fig. 2), and the first terminal 20, the second The positions corresponding to the terminal 30 and the fitting 40 are formed so as to allow the first pressing arm portion 21, the second pressing arm portion 31, and the upper arm portion 41 of the first terminal 20, the second terminal 30, and the fitting 40 to pass through each other. The slit-shaped first groove portion 52, the second groove portion 53, and the third groove portion 54 enter. Therefore, the first groove portion 52, the second groove portion 53, and the third groove portion 54 (the width between the groove inner surfaces in the direction perpendicular to the paper surface) are higher than the first terminal 20 and the second portion. The thickness of each of the terminal 30 and the fitting 40 is also somewhat larger. The first groove portion 52, the second groove portion 53, and the third groove portion 54 are provided with first cam portions 55, second cam portions 56, and third cam portions 57 for connecting the inner surfaces of the grooves.

As shown in FIG. 2(A), the first cam portion provided in the first groove portion 52 corresponding to the first terminal 20 in the terminal arrangement direction 55 is a lower portion of the first groove portion 52 of the movable member 3 in the open position, and a 3/4 portion of the circumference around the center of rotation is formed in a circular shape, and the remaining lower right quarter portion is formed in a square shape. The shape of the corners. The center of rotation of the first cam portion 55 is located on an extension line of the rotational axis X of the movable member 3. Although the center of rotation is rotated by the movable member 3, the first pressure-receiving arm portion 24 of the first terminal 20 is elastically displaced to move up and down, but the left and right edges are formed by the concave first pressure-receiving portion 24A. The department is restricted and will not move. Since the elastic displacement of the first pressure receiving arm portion 24 is formed in a direction perpendicular to the direction in which the first pressure receiving arm portion 24 extends, the top portion of the first cam portion 55 abuts against the first pressure receiving portion 24A. The first contact point moves in the vertical direction, and the neutral line Z connecting the first contact point and the rotation axis X extends in the vertical direction and is perpendicular to the front-rear direction. The first cam portion 55 is a sliding portion that is rotated in the concave first pressure receiving portion 24A (the upper portion located further above the horizontal line passing through the rotation axis X and the leftward portion than the neutral line Z) The lower part) constitutes a circular part so its radius becomes the cam radius. Thus, the first cam portion 55, when the movable member 3 is rotated from the open position of FIG. 2 to the closed position of FIG. 4, the first cam portion 55 is only the above-mentioned 3/4 portion of the circular portion. It is slidably connected to the edge of the first pressure receiving portion 24A, and since the cam radius of the sliding portion is constant, only the cam displacement is not generated in the first cam portion 55.

The first cam portion 55 does not contact the front upper edge of the first support arm portion 22 of the first terminal regardless of whether the movable member 3 is located at any rotational position from the open position to the closed position. Separation status It is above the first support arm portion 22.

The first cam portion 55 can be rotated by the concave first pressure receiving portion 24A as the movable member 3 rotates, and can be slidably guided by the first pressure receiving portion 24A as shown. The lead portion is formed as a circular portion, and may also constitute other shapes of non-circular non-equal radii. In this case, even if it is a non-circular cam shape, as long as the rotation axis X of the first cam portion 55 moves up and down on the neutral line Z, it can be restricted by the edges of both the concave first pressure receiving portions 24A without being Moves towards the landscape.

On the other hand, as shown in FIG. 2(B), the second cam portion 56 provided in the second groove portion 53 corresponding to the second terminal 30 in the terminal array direction is more than the horizontal line passing through the rotation axis X. The upper left portion of the left side of the neutral line Z is formed with an arc-shaped upper cam surface 56A, and has a substantially fan-shaped portion with respect to the right side of the upper cam surface 56A and a lower cam surface 56B formed at the fan portion. And the center of rotation is located at a position of the axis of rotation X that coincides with the center of rotation of the first cam portion 55. The upper cam surface 56A is configured as a cam surface that protrudes outward from the radius of the arcuate portion of the first cam portion 55 indicated by a broken line. The fan-shaped portion forming the lower cam surface 56B has an upper extending portion extending from the right end position of the upper cam surface 56A toward the right in the second drawing (B); and a position from the lower end of the upper cam surface 56A toward the right a lower extension portion that extends in a downward direction; a front lower cam surface 56B-1 that linearly extends downward from a front end of the upper extension portion and a rear portion that extends linearly from a front end of the lower extension portion toward the right side The lower cam surface 56B-2 is coupled by an arc-shaped intermediate lower cam surface 56B-3 to form a lower cam surface 56B. Regardless of the axis of rotation X and the lower cam surface described above Any position of 56B is coupled, and the distance may be greater than the cam radius of the upper cam surface 56A. Further, the distance connecting the rotation axis X and the front lower cam surface 56B-1, the rear lower cam surface 56B-2, and the intermediate lower cam surface 56B-3, that is, the radius of the cam, is sequentially in the middle. The cam surface 56B-3 is the largest, the second lower cam surface 56B-1, and the second lower cam surface 56B-2.

In the second diagram (B) showing the state in which the movable member 3 is in the open position, the cam surface 56A on the second cam portion 56 is located to the left of the second pressure receiving portion 34A of the second terminal 30 and is somewhat separated. At the second pressure receiving portion 34A, the lower cam surface 56B is such that the rear lower cam surface 56B-2 and the second front fixed arm portion 36 which is the front portion of the second support arm portion 32 of the second terminal 30 are formed. The cam support portion 38 formed at the edge contacts. Therefore, as the second lower abutment point where the lower cam surface 56B abuts the position of the cam supporting portion 38, as the movable member 3 rotates from the open position toward the closed position, the rear lower cam surface 56B-2, the middle The order of the lower cam surface 56B-3 and the front lower cam surface 56B-1 is located in the area of the lower cam surface 56B-3 and the front lower cam surface 56B-3, and its position is moved from the front to the rear.

As shown in FIG. 2(C), the third cam portion 57 provided in the third groove portion 54 corresponding to the fitting 40 in the terminal array direction is formed and the second cam portion located in the second groove portion 53. The 56 has substantially the same shape and has a fan-shaped portion extending toward the right side, and the center of rotation is located at a position corresponding to the rotational axis X of the first cam portion 55 and the second cam portion 56. The difference between the third cam portion 57 and the second cam portion 56 is that the cam surface of the third cam portion 57 is different from The portions corresponding to the lower cam surface 56B-2 and the intermediate lower cam surface 56B-3 after the second cam portion 56 are located at positions away from the lower arm portion 42 of the fitting 40 in FIGS. 2(C) and 3(C) and It is not in contact with the lower arm portion 42. Therefore, the third cam portion 57 is not in contact with the lower arm portion 42 when the movable member 3 is in the open position and the rotational process position, and is as shown in Fig. 4 when the movable member 3 reaches the closed position. As shown, the lower cam surface 57B-1 of the third cam portion 57 is in contact with the lower arm portion 42 described above.

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

First, the connector 1 is placed at a predetermined position on a circuit board (not shown), and the first connection portion 20 of the first terminal 20, the second connection portion 39 of the second terminal 30, and the solder fixing portion of the fitting 40 are first. 49 is soldered and fixed to each corresponding portion of the circuit board.

With respect to the connector 1 thus mounted on the circuit board, the movable member 3 is placed at a vertical open position as shown in FIG. 2, and the receiving opening portion 16 of the outer casing 10 is formed to be open toward the rear (left side in the drawing). The state makes the insertion of the flat conductor F possible.

Next, in a state where the movable member 3 is in the open position as shown in FIG. 2, the connection portion of the flat conductor F is inserted into the receiving opening portion 16 in the front direction. The first terminal 20 is between the first pressing portion 25A of the first flexible arm portion 25 and the first supporting portion 27A of the first rear supporting arm portion 27, and the second terminal 30 is at the second of the second flexible arm portion 35. Between the pressing portion 35A and the second supporting portion 37A-1 of the second flexible supporting arm portion 37A, Since the thickness is somewhat wider than the thickness of the connecting portion of the flat conductor F, the connecting portion of the flat conductor F is easier to insert. However, in the above-described fitting 40, the gap between the locking portion 45A of the upper arm portion 41 and the locking portion 49A of the lower arm portion 42 is narrower than the thickness of the connecting portion of the flat conductor F, Therefore, the flat conductor F is elastically displaced by the distal end of the flat conductor F, and is advanced to the predetermined position while extending the interval, and the locking portion 45A is inserted into the notch of the flat conductor F. The stopper F3 is thereby held by the flat conductor F.

Even if the connecting portion of the flat conductor F is inserted as described above, since the movable member 3 is in the open position, the lower edge of the first rear support arm portion 27 of the rear half of the first support arm portion 22 constituting the first terminal 20 is formed. The formed projection 27B is separated from the bottom wall 15 of the outer casing 10 to form a gap C.

Next, as shown in Figs. 3 and 4, the movable member 3 is rotated to the closed position of Fig. 4 via the position at the turning process of Fig. 3. In addition, in the third figure and the fourth figure, the flat conductor is originally inserted, but the first terminal 20, the second terminal 30, and the accessory 40 are easy to understand the maximum possible elasticity. The shift amount is displayed, and the shift state when the flat conductor is not present is actually present because the flat conductor is inserted. Therefore, in the same state as in FIG. 5(B), only the flat type is formed. The amount of elastic displacement of the thickness of the conductor produces a contact pressure comparable to the difference in the maximum possible elastic shift amount described above. The first convex of the movable member 3 by the rotation of the movable member 3 described above The wheel portion 55, the second cam portion 56, and the third cam portion 57 are rotated about the rotation center X. In the rotation shown in FIG. 4, the first cam portion 55 and the third cam portion 57 are respectively separated from the upper edges of the front portions of the first front fixed arm portion 26 and the lower arm portion 42 of the first terminal 20. In the state, the lower cam surface 56B of the second cam portion 56 is as shown in FIG. 3(B), and the second lower abutment point abutting on the cam support portion 38 of the second terminal 30 is from the second position. After the figure (B), the lower cam surface 56B-2 is transferred to the middle lower cam surface 56B-3 of the lower cam surface 56B. Since the cam radius is maximized in the middle lower cam surface 56B-3, the second lower abutment point is transferred from the rear lower cam surface 56B-2 to the intermediate lower cam surface 56B-3, and the cam surface above the second cam 56 The 56A will elastically displace and press the second pressure-receiving arm portion 34 of the second terminal 30 by its second upper abutment point. The position of the second lower abutment point moves from the front to the rear along the upper edge of the cam support portion 38, and since the upper edge extends horizontally in a straight line, there is no change in the height direction. Therefore, since the cam radius of the second lower abutment point is maximized at the intermediate lower cam surface 56B-3, the position of the rotational axis X of the cam is moved upward by the increase of the cam radius. Since the first center portion 55 and the third cam portion 57 are located on the same axis of rotation X, the first cam portion 55 and the third cam portion 57 are both rotated while the center of rotation is raised. The first pressure receiving arm portion 24 of the first pressure receiving portion 24A of the first terminal 20 and the front portion of the upper arm portion 41 of the fitting 40 are supported by the upper surface of the cam. As described above, the movable member 3 is rotated toward the closed position, and the first cam portion 55 and the second cam portion 56 which are integrally formed as one of the movable members 3 are integrally formed. When the third cam portion 57 rotates, the first pressure receiving arm portion 24 of the first terminal 20, the second pressure receiving arm portion 34 of the second terminal 30, and the front portion of the upper arm portion 41 of the fitting 40 are respectively supported upward. And using the principle of the lever, the first flexible arm portion 25 of the first terminal 20, the second flexible arm portion 35 of the second terminal 30, and the rear portion of the upper arm portion 41 of the fitting 40 are elastically displaced downward and respectively maintained. The location. Therefore, the first terminal 20 presses the flat conductor F downward by the first pressing portion 25A of the first flexible arm portion 25 and the second terminal 30 by the second pressing portion 35A of the second flexible arm portion 35, respectively. While being deflected downward, the flat conductor F receives the first support portion 27A from the first rear support arm portion 27 formed on the first terminal 20 and the second flexible portion formed on the second terminal 30 from below. The reaction force of the second support portion 37A-1 of the support arm portion 37A is supported. Although the first rear support arm portion 27 of the first terminal 20 is elastically deflected and displaced downward, the lower end edge of the first rear support arm portion 27 is formed with a downwardly facing projection 27B at the movable member. When the third portion is rotated to the closed position, the protrusion 27B abuts against the upper surface of the bottom wall 25 of the outer casing 10 to prevent further elastic deflection displacement of the first rear support arm portion 27, thereby making the maximum displacement constant. And the reaction force from the bottom wall 15 is received so that the nip pressure between the first support portion 27A and the first pressing portion 25A against the flat conductor F is both sure and strong.

In addition, the fitting 40 is a notched latched portion F3 of the flat conductor F that is lowered by the first pressing portion 25A of the first terminal 20 and the second pressing portion 35A of the second terminal 30, and is moved downward. The locking portion 49A of the lower arm portion 42 is locked, and can be approached by the above-mentioned opposite direction The two locking portions 45A and 49A are disposed to prevent the flat conductor F from coming off.

As described above, in the present embodiment, the flat conductor F is connected to the connector 1, and the projection 27B of the first rear support arm portion 27 of the first terminal 20 in the connector 1 of the present embodiment, the movable member 3 The first cam portion 55 and the second cam portion 56 will be described in further detail.

<The protrusion of the first terminal>

In the electrical connector for a flat conductor of the embodiment, since the flat surface of the metal plate is directly formed, the plate thickness direction can be arranged at a very high density by setting the thickness direction of the terminal. Most of the terminals. Further, since the distance between the terminals is made small by the high-density arrangement, in order to facilitate the soldering of the connection portion toward the circuit board, the two kinds of terminals are alternately arranged and the connection portion is disposed outside the front and rear outer casings. The position is increased in the direction in which the terminals are arranged in the direction in which the connecting portions are arranged. As described above, when a plurality of terminals of different types are arranged in a wide range in the width direction of the flat conductor, the rigidity of the outer casing and the deflection of the flat conductor are often not uniform in the width direction. Moreover, when the terminals are not uniform in size due to the dimensional error at the time of manufacture, and the assembly position error at the time of assembly toward the outer casing, etc., even if the pressing portion of the single movable member can be linearly produced with excellent precision in the above-described width direction, It is also not easy to make the contact pressure between the terminal and the flat conductor at which terminal. The influence of the unevenness is that when the rotating member is rotated toward the closed position, the flat type conductor is supported from below in order to obtain the contact pressure, and the possible displacement amount of the support arm portion that displaces the deflection is ensured to be large, and Converging the actual shift amount to its possible shift amount Within the words, you can get easing. In Patent Document 1, a gap is provided between the support arm portion and the bottom wall of the outer casing, and the size of the gap is set to gradually increase from the position of the joint portion toward the rear end in a free state of the support arm portion. However, it is to set the possible shift amount to be large, and as a result, the height dimension of the connector is increased, which is a violation of the desire to minimize the demand. Moreover, even if the amount of possible displacement is increased, the terminals are not completely independent of each other and are freely displaced, and since the support arm portions of the respective terminals are flexed and displaced by being pressed by a flat type conductor, the movable member is used. In a state in which the total applied pressure and the reaction force from the support arm portions of all the terminals are balanced, the contact pressure and the displacement amount with the flat conductor are not uniform between the respective terminals.

In the present embodiment, it is not necessary to excessively increase the possible displacement amount of the support arm portion, but the actual displacement amount of the support arm portion when the movable member reaches the closed position and the contact pressure to the flat type conductor are at the terminals of each other. The room becomes uniform.

In the present embodiment, the projection 27B is provided on the lower edge of the rear end of the first rear support arm portion 27 of the first terminal 20. Therefore, when the rotating member reaches the closed position of FIG. 5(B) from the open position shown in FIG. 5(A), the first rear support arm portion 27 is flexed and displaced, and the protruding portion 27B and the outer casing are The upper surface of the bottom wall 15 of 10 abuts, and the first rear support arm portion 27 prevents further displacement. Therefore, regarding the first terminal 20, the displacement amount of the first rear support arm 27 is made the same at all the terminals. Further, since the projection 27B receives the reaction force from the bottom wall 15 of the outer casing 10 on the basis of the displacement amount, all the terminals are connected. The contact pressure is also the same. In this way, the possible displacement amount of the support arm portion is not set too large, and the unevenness of the displacement amount and the contact pressure can be avoided. Since the rigidity of the bottom wall 15 is high, the reaction force, that is, the contact pressure can be ensured to be large. Further, it is possible to prevent the flat conductor from being shaken in the up and down direction or the contact pressure in the guiding direction.

<First cam portion and second cam portion of movable member>

In the present embodiment, in order to press the first and second terminals against the flat conductor by the first and second pressing portions, the movable member 3 has the first and second first and second terminals, respectively. The first cam portion 55 and the second cam portion 56 that act to support the pressing portion.

The first cam portion 55 is configured to have a circular portion having a certain cam radius regardless of the cam rotation angle in a range in which the first pressure receiving portion 24A of the first terminal 20 is slidably rotated, so that no cause occurs. The cam of the first cam portion 55 rotates by itself. When the position of the rotation axis X of the movable member 3 generated by the second cam portion 56 to be described later is moved upward, the first cam portion 55 common to the rotation axis X also moves upward, and the same amount of displacement occurs. Therefore, in the present embodiment, as long as the behavior of the second cam portion 56 is described, the displacement of the first pressure receiving portion 24A of the first terminal 20 and the second pressure receiving portion 34A of the second terminal 30 can be understood.

The second cam portion 56 is as described with reference to Fig. 2(B), and has the same relationship as the shape of the cam, the cam radius of the upper cam surface 56A, and the lower cam surface 56B. The second cam portion 56, although rotated In the middle of the process, the axis of rotation X also moves up and down, but for the sake of easy understanding, Fig. 6(A) shows the state of the cam surface in the case where the position of the rotation axis X is stationary and is at a fixed point, and then Fig. 6(B) The state in which it also moves up and down the axis of rotation X is further explained. 6(A) and 6(B) show the position of the second cam portion 56 after the movable member 3 is rotated from the open position as the position <1>, and the rotation is advanced and the second cam portion 56 is used. When the second lower abutment point is located at the position Z of the cam, the position is <2>, and the position when the position is rotated to the closed position is taken as the position <3> and the second cam portion 56 is displayed at each position. Further, the second upper contact point of the second cam portion 56 in the above positions <1>, <2>, and <3> is denoted by P, and P1, P2, and P3 are respectively set, and the second lower abutment is performed. Point Q is displayed as Q1, Q2, and Q3, respectively.

In a sixth diagram (A) shown at a position fixed to the rotational axis X, the movable member 3 starts to rotate from the open position and reaches the closed position <3> via the position <1>, <2> and around the rotational axis. The second upper abutment point P of the second cam 56 rotated by X moves to P1, P2, P3, and the second lower abutment point Q moves to Q1, Q2, Q3. Regarding the second upper abutment point P, when the P2 is located, the upper abutment point P is at the highest position in the height direction, and when the second lower abutment point Q is located, the second lower abutment point Q is at the lowest position when located at the Q2. . That is, the distance between the second upper abutment point P and the second lower abutment point Q in the height direction is P2 at the second upper abutment point P and Q2 at the second lower abutment point Q, and P2 and When both of Q2 are located on the neutral line Z, they become the maximum value. Therefore, at this time, the deflection displacement amount of the second pressure receiving arm portion 34 in the second pressure receiving portion 34A of the second terminal 30 becomes the most Big.

Next, each of the positions Q1, Q2, and Q3 of the second lower contact point Q actually moving in accordance with the movement of the second cam portion 56 shown in Fig. 6(A) is moved in the horizontal direction instead of moving in the horizontal direction. The state of the upper edge of the cam support portion 38 which is the horizontal direction of the upper edge of the second front fixed arm portion 36 of the second terminal 30 is shown in Fig. 6(B). As described above, since the respective positions Q1, Q2, and Q3 of the second lower contact point Q do not move in the height direction, they are moved in the height direction of the positions shown in FIG. 6(A), and are shown in FIG. (B) is expressed as a movement of the position of the rotation axis X. That is, the rotation axis X is moved in the height direction in the order of X1, X2, and X3 in Fig. 6(B).

The second upper abutment point P that is rotated and moved about the rotation axis X of the positions X1, X2, and X3 in order, as shown in FIG. 6(B), changes P1 while moving in the height direction. , P2, P3 position. The amount of movement in the height direction of the second upper contact point P is the amount of movement in the height direction of the second lower contact point Q in FIG. 6(A) (that is, the amount of movement in the height direction of the rotation axis X). The amount of movement in the height direction of the second upper contact point P is superposed, and corresponds to the amount of elastic displacement of the second pressure receiving portion 34A. As a result of the large amount of movement in the height direction of the second upper contact point P, the second upper contact point P and the second lower contact point Q simultaneously move over the neutral line Z and move in the lateral direction, so the operator will The above neutral line Z is used as the front and rear, and a large buckle feeling is obtained.

Next, in the embodiment, the first terminal 20 is located. A variation of the projection 27B at the rear end of the first rear support arm portion 27 will be described. The projection 27B may have a low triangular shape having a tapered surface like the seventh embodiment (A), as shown in FIG. 2(A), even if it is not substantially quadrangular, as in FIG. 7(B). Generally, it is located in front of a plurality of front ends, and may be disposed not on the first rear support arm portion 27 but on the bottom wall 15 of the outer casing 10 as shown in FIG. 7(C), and may also be as shown in FIG. 7 ( D) is disposed opposite to both the first rear support arm portion 27 and the bottom wall 15 of the outer casing 10.

Next, in the present embodiment, the first terminal 20 is such that the first front fixed arm portion 26 constituting the front portion of the first support arm portion 22 is the first connecting portion 29 at the front end and the first portion as described above. Between the connecting portions 23, there is a ridge portion 28 that protrudes in a mountain shape so as to protrude upward. As shown in Fig. 8 (A) and (B), in the peripheral region S (S1 + S2) where the raised portion 28 is located, the peripheral portion is provided with the relationship of the connecting portion 23 based on the purpose of holding the terminal. The groove width of the terminal groove becomes relatively narrow (refer to Fig. 8 (B) showing only the outer casing). Therefore, when the first connection portion 29 of the first terminal 20 is soldered to the circuit board, the flux tends to rise along the surface of the first connection portion 29 and move toward the connection portion 23. When the above-described ridges 28 are not provided, the flux may reach the joint portion 23 through a narrow gap between the terminal surface and the terminal groove based on the capillary phenomenon, and the flux may be further moved depending on the amount of the flux to be moved. progress. Therefore, in the present embodiment, by ensuring that the raised portion 28 is large, even if the amount of the flux to be moved is slightly increased, the flux is diffused on the surface of the raised portion 28 and accumulated therein, thereby eliminating further to Pre-moving flux. Thus, the movement of the flux does not occur until the position of the rear end of the terminal in electrical contact with the flat conductor.

Next, the movable member 3 in which the cam portion is formed will be further described. In the present embodiment, the transition region 58 between the rear surface and the lower surface of the movable member 3 shown in Fig. 9(A) has a curved outer wall which is an arc centered on the rotation axis X. Therefore, the distance between the front surface of the island-shaped position regulating portions 18B and 18C located closest to the movable member 3 in the front-rear direction and the above-described transfer region 58 is constant regardless of the position between the open position and the closed position of the movable member 3. .

When the movable member 3 is rotated, the force in the backward direction may be received. When the force is large, the transition region 58 is displaced toward the rear during the rotation. If the transition region 58 is a straight line and the distance from the rotation axis is not fixed as shown in Fig. 9(B), the portion where the distance is the largest during the rotation causes the movable member to face the rear with the amount corresponding to the distance. Moving, there is also a fear that the terminal will be excessively pressed and broken. In the present embodiment, since the transition region 58 has an arc shape, the distance between the transition region and the position regulating portions 18B and 18C is fixed during rotation, and the movable member does not excessively press even if it abuts against the terminal. The terminal prevents damage to the terminal.

Next, the cam shape of the second cam portion 56 of the movable member 3 is not only the second upper abutment point P and the second lower abutment point Q accompanying the rotation of the movable member 3, but also the second positional relationship as shown in FIG. The case where the cam portion 56 is rotated may be designed in such a manner as to have various positional relationships. In the example shown in Fig. 6, although it is the one that obtains the maximum cam shift amount For example, the second upper abutment point P reaches the uppermost P2 and the second lower abutment point Q reaches the lowermost position Q2 and is located on the neutral line Z, but in the present embodiment, Both the contact point P and the second lower abutment point Q can obtain the cam shift amount, and can also increase the cam shift amount of the second lower abutment point Q, so there is no need to make the second upper abutment point P The lowermost position P2 and the lowermost position Q2 of the second lower abutment point Q simultaneously come to the neutral line Z, and it is not necessary to reach the neutral line Z.

Examples of Figs. 10(B) to (D) are shown. Fig. 10(A) shows the positional relationship of Fig. 6 which has been described in order to compare with these. The positional relationship is as shown in FIG. 10(A), although the second upper abutting point P2 and the second lower abutting point Q2 at the time point of obtaining the maximum cam shift amount are simultaneously located at the second terminal 30. The cam support portion 38 constitutes a neutral line Z of the vertical line, but FIGS. 10(B) to (D) are not simultaneously located on the neutral line Z, or one of them does not reach the neutral line Z.

In Fig. 10(B), when the movable member 3 comes to the closed position, the second lower abutment point Q3 is substantially larger than the neutral line Z, but the second upper portion is compared with the case of Fig. 10(A). The abutment point P3 is located on the neutral line Z. Therefore, the buckle feeling is obtained on the lower cam surface 56B after the upper cam surface 56A is obtained, but the click feeling on the lower cam surface 56B is large.

Next, in Fig. 10(C), when the movable member 3 comes to the closed position, the second lower abutment point Q3 reaches the position on the neutral line Z, at which time the second upper abutment point P3 comes to pass the neutral line. The location of Z.

Further, in the case of Fig. 10(D), two cases are shown. In one case, the first upper contact points P1, P2, P3 and the second lower contact points Q1, Q2, Q3 are displayed for comparison. In the case of the other figure, the second upper abutment points P1', P2', P3' and the second lower abutment points Q1', Q2', Q3' are displayed.

The second lower abutting points Q1', Q2', Q3' in the 10th (D) are located at the same position as the second lower abutting points Q1, Q2, Q3 in the case of displaying the 10th figure (B). However, the second upper abutment points P1', P2', P3' are located in front of the rotation direction toward the closed position than the second upper abutment points P1, P2, P3. Thus, the second upper abutment point P3' is not located on the neutral line Z.

1‧‧‧Connector

2‧‧‧Connector body

3‧‧‧ movable components

10‧‧‧ Shell

11‧‧‧First terminal slot

11A‧‧‧first terminal upper slot

11B‧‧‧First terminal lower slot

12‧‧‧Second terminal slot

12A‧‧‧Second terminal upper slot

12B‧‧‧Second terminal lower slot

13‧‧‧Accessory slot

13A‧‧‧Accessory upper slot

13B‧‧‧Fitting lower slot

14‧‧‧上壁

15‧‧‧ bottom wall

16‧‧‧ Receiving opening

17‧‧‧Open space

18B, 18C‧‧‧Location Restriction Department

19A, 19B, 19C‧‧‧ Fixed Department

20‧‧‧First terminal

21‧‧‧First pressing arm

22‧‧‧First support arm

23‧‧‧ First Link

24‧‧‧First pressure arm

24A‧‧‧First Pressure Department

25‧‧‧First flexible arm

25A‧‧‧First press

26‧‧‧First front fixed arm

27‧‧‧First rear support arm

27A‧‧‧First Support

27B‧‧‧dun

28‧‧‧Uplift

29‧‧‧First connection

29A‧‧‧The first fixed department

30‧‧‧second terminal

31‧‧‧Second pressing arm

32‧‧‧Second support arm

33‧‧‧Second Link

34‧‧‧Second pressure arm

34A‧‧‧Second pressure department

35‧‧‧ movable components

35A‧‧‧Second press

36‧‧‧Second front fixed arm

36B‧‧‧ card stop

37A‧‧‧Second flexible support arm

37A-1‧‧‧Second support

37B‧‧‧Second rear fixed support arm

38‧‧‧Cam support

38A‧‧‧Cam abutment

39‧‧‧Second connection

39A‧‧‧Second fixed department

40‧‧‧Accessories

41‧‧‧ upper arm

42‧‧‧ Lower arm

43‧‧‧Connecting Department

45‧‧‧Flexible arm

45A‧‧‧Card

49‧‧‧welding fixture

49A‧‧‧Cards

51‧‧‧Operation Department

52‧‧‧First groove

53‧‧‧Second trough

54‧‧‧ third slot

55‧‧‧First cam section

56‧‧‧Second cam section

56A‧‧‧Upper cam surface

56B‧‧‧ lower cam surface

56B-1‧‧‧Front lower cam surface

56B-2‧‧‧ rear lower cam surface

56B-3‧‧‧Middle lower cam surface

57‧‧‧ Third cam department

Z‧‧‧Neutral line

X‧‧‧ axis of rotation

C‧‧‧ gap

Claims (3)

An electrical connector for a flat conductor, comprising: a plurality of terminals, which are provided with an outer shape in a state in which a flat plate surface of the metal plate is maintained; and an outer casing at a predetermined interval in a direction perpendicular to the plate faces Holding the plurality of terminals; and the movable member is movable in rotation between an open position at which the flat conductor can be inserted into the outer casing and a closed position in which the flat conductor is pressed; the terminal has a pressing arm portion The upper arm side of the outer casing extending in the longitudinal direction of the flat conductor; and the support arm portion is coupled to the pressing arm portion by a connecting portion at an intermediate position in the longitudinal direction of the pressing arm portion, and is oriented The pressing arm portion has a pressing contact portion for pressing the flat conductor on one end side of the insertion side of the flat conductor, and the pressing arm portion is provided on the other end side. When the movement of the movable member to the closed position is completed, the pressure receiving portion is elastically deformed by the force from the cam portion of the movable member; the pressing arm portion is controlled by The portion receives the force from the cam portion, causing the pressure receiving portion to elastically displace in the same plane as the plate surface of the terminal, and to cause a contact pressure on the flat conductor, wherein the terminal has a misaligned arrangement along the terminal arrangement direction. In at least two of the one terminal and the second terminal, the first terminal has a first pressing arm portion that is formed with a first pressing portion on one end side and a second end portion on the other end side with respect to the coupling portion in the longitudinal direction. a pressure receiving portion; and a first support arm portion; the second terminal portion has a second pressing arm portion that is formed with a second pressing portion on one end side and a second pressure receiving portion on the other end side with respect to the coupling portion And a second support arm; The movable member has a first cam portion that cooperates with the first pressure receiving portion at a position corresponding to the first terminal in the terminal arrangement direction, and has a first cooperation with the second pressure receiving portion at a position corresponding to the second terminal a second cam portion; the first cam portion is a cam surface that is rotatably guided by a first pressure receiving portion of the first pressing arm portion centering on a rotation axis of the movable member, and the first pressure receiving portion Forming a first upper abutting point; the second cam portion is formed such that an axis of rotation of the second cam portion is on an extension of the rotation axis of the first cam portion, and has a rotation of the movable member toward the closed position a lower cam surface that presses the second pressure receiving portion of the second pressing arm portion; and a lower cam surface having a portion of a cam radius that presses the second supporting arm portion or the bottom wall of the outer casing at the other end side; When viewed in the extending direction of the axis, the second cam portion has a lower cam surface with respect to a neutral line that connects the first cam portion to the first upper contact point of the first pressure receiving portion and the rotation axis. Arrive At least one of a second lower abutment point of the second support arm portion or the bottom wall of the outer casing, and a second upper abutment point for abutting the upper cam surface with the second pressure receiving portion of the second pressing arm portion a cam shape that moves through the neutral line during the rotation of the movable member from the open position to the closed position. The flat conductor electrical connector according to claim 1, wherein the second cam portion has a second upper portion that abuts the upper cam surface against the second pressure receiving portion of the second pressing arm portion A contact, a cam shape that moves through the neutral line during the rotation of the movable member from the open position to the closed position. Flat conductor electrical power as described in claim 1 or 2 a connector, wherein the second cam portion simultaneously positions the second upper abutment point of the maximum cam shift amount of the upper cam surface and the second lower abutment point of the maximum cam shift amount of the lower cam surface on the neutral line .