CN104347981B - Electrical connector for flat conductive member - Google Patents

Abstract

The present invention provides an electrical connector for a flat conductor in which a movable part cannot leave a casing. When the movable part is rotated in the positive direction in the open position to the negative direction that is not the normal rotation direction, that is, the positive direction, the first cam part (55) is mounted on the mountain-shaped part ( 28C), in the state where the step-on point becomes the new disengagement rotation position of the first cam part, the pressed part of the movable arm part (31) of the second terminal (30) has a function to prevent the pressed part from contacting with the first cam part. The two cam parts are engaged and the pressed point subjected to the contact pressure moves to the other end side in the longitudinal direction, and the second cam part (56) has an engaging part that engages with the pressed part. The pressure receiving part, so that the movable member rotates in the positive direction with the engagement point of the above-mentioned engagement pressed part and the engagement pressure receiving part as a fulcrum, so that the first cam part (55) can be separated from the stepping point and the cam axis Return to normal position.

Description

Electrical connectors for flat conductors

technical field

The present invention relates to an electrical connector for flat conductors.

Background technique

Such an electrical connector is known, for example, as disclosed in Patent Document 1. The terminal is produced while maintaining the flat surface of the metal plate, and a plurality of terminals are arranged in the thickness direction of the metal plate by the case. There are two types of terminal mixed arrangements, both of which have two types of arms, an upper movable arm and a lower fixed arm, which extend in the same direction and are vertically arranged. The fixed arm is fixedly held by the case. On the other hand, the movable arm portion constitutes a pressing portion on one end side in the longitudinal direction and a pressed portion on the other end side, and is based on a rotatable movable arm portion provided with a cam portion that is guided by a rotation guide portion and rotates about a cam axis. The amount of cam displacement caused by the positive direction rotation of the member toward the closed position, the above-mentioned pressed part is elastically lifted upward, and the pressing part is displaced downward at the fulcrum of the connecting part. When the movable member is in the open position, insert the flat conductor between the fixed arm part and the movable arm part from one end side, and use the above-mentioned pressing part that is displaced downward by the rotation of the movable member toward the closed position to press against the flat conductor in the open position. The protruding contact portion formed on the arm portion is fixed to perform electrical connection.

The movable member is rotatable between an open position and a closed position. In the open position, the flat conductor can be inserted. In the closed position, the pressed portion presses the inserted flat conductor. The position of the cam axis of the above-mentioned cam portion itself can be moved, but the movable member is based on a normal operation that is rotated in one direction from the above-mentioned open position to the closed position, and the rotational axis of the movable member is different from the regular constant position. The cam axes are aligned. The rotation direction from the above-mentioned open position to the closed position is a positive direction, and the reverse direction is a negative direction.

The movable member only needs to be able to rotate in the normal direction with respect to the rotation from the above-mentioned open position to the closed position, and it is sufficient that the housing forms a space within the range for allowing the movable member to rotate. However, in reality, as many connectors of this type do, the above-mentioned space is formed in such a way that the movable member can rotate slightly in the negative direction at the above-mentioned open position due to the accuracy of each part and the reason for assembly. The limit position of its rotation in the negative direction is determined by the housing. Therefore, it is possible to prevent the movable member from rotating in the negative direction beyond the restricted position.

Patent Document 1: Japanese Patent Laid-Open No. 2008-192408

In this way, in Patent Document 1, when the movable member is rotated in the positive direction from the open position toward the closed position, the movable member can also rotate in the negative direction at the above-mentioned open position. Turn in the negative direction before normal operation, then change the orientation and turn in the positive direction.

This unnecessary rotation operation in the negative direction causes the cam axis, which is the rotation center of the movable member, to deviate from the regular position. Since the position of the cam axis of the movable part itself can move and is not in a constant position, the movable part takes the cam axis departing from the normal position as the center of rotation and receives a torque in the negative direction, causing the cam axis to float from the normal position, and the cam part When the rotating guide part of the terminal is mounted, the cam part is separated from the rotating guide part by the operation of the movable member in the negative direction, and the function as the initial movable member cannot be performed.

Contents of the invention

In view of this situation, the present invention aims to provide an electrical connector for flat conductors that can return the cam axis of the cam portion to the normal position without causing the cam axis to rotate even if the movable member rotates in the negative direction before rotating in the normal positive direction. Movable parts disengaged.

In the electrical connector for a flat conductor according to the present invention, the arm-shaped fixed arm portion and the movable arm portion are arranged in parallel on the terminal formed by maintaining the flat surface of the metal plate so as to extend in the same direction. The middle part of the longitudinal direction and the movable arm part are connected to each other by the connecting part to form a single part. The above-mentioned fixed arm part is fixed and held by the housing. When the movable member subjected to the rotational operation rotates in the positive direction from the open position where the flat conductor can be inserted to the closed position, the cam portion of the movable member presses the movable member based on a predetermined amount of cam displacement. For the pressed part of the arm, the pressed part is displaced in the plane including the plane of the terminal. Through the displacement of the pressed part, the movable arm part uses the above-mentioned connecting part as a fulcrum to make a lever-like angular change. The pressing part is displaced by the position, and the pressing part applies a pressing force to the flat conductor.

In the electrical connector for flat conductors described above, in the present invention, it is characterized in that a plurality of the terminals are arranged in a direction at right angles to the flat surface of the terminals, and the plurality of terminals have at least different first terminals and The second terminal, the first terminal has a standing portion rising in a step shape from the other end side of the upper edge portion of the fixed arm portion within the range facing the pressed portion of the movable arm portion, and the The top of the rising part is formed with a mountain-shaped part, and the moving part is restricted from moving toward the other end direction of the cam part by the rising part, and the first cam for the moving part is formed by the above-mentioned upper edge part and the rising part. The rotation guide portion that guides the rotation of the cam axis around the normal position, the upper edge portion of the fixed arm portion of the second terminal forms a linear portion extending in the longitudinal direction in the range corresponding to the rotation guide portion of the first terminal,

For the cam portion, on one cam axis, there is a first cam portion corresponding to the first terminal, and a second cam portion corresponding to the second terminal, and when the movable member is subjected to a rotational operation, the position of the above-mentioned cam axis itself is in a movable state and rotates around the above-mentioned cam axis,

The cam portion has: a small cam radius portion that brings the first cam portion and the second cam portion into contact with the rotation guide portion or the linear portion of the fixed arm portion, respectively, when the movable member is in the open position, or A gap is formed between the rotation guide portion or the linear portion of the above-mentioned fixed arm portion; and a large cam radius portion formed by a larger cam radius than the above-mentioned small cam radius portion can Apply contact pressure to the above-mentioned pressed part,

When the movable part is rotated in the negative direction at the open position and then rotated in the positive direction, the first cam part will climb up the mountain part due to the positive direction rotation of the movable part, and become the new position of the first cam part at the stepping point. In the state of being away from the rotation position, the pressed portion of the movable arm portion of the second terminal has a pressed point that prevents the pressed portion from receiving the contact pressure from the second cam portion on the other end side in the longitudinal direction. The engagement pressed part that moves, and the second cam part has an engagement pressure receiving part that engages with the engagement pressure receiving part, so that the engagement pressure receiving part and the engagement pressure receiving part can be adjusted by the movable member. The engagement point is the fulcrum that rotates in the positive direction, so that the first cam part can be separated from the step-on point to return the cam axis to the normal position.

In the electrical connector for flat conductors of the present invention described above, when the movable member is in the open position, after the flat conductor is inserted and immediately before being subjected to a normal rotation operation, that is, a positive direction rotation, if the movable member is temporarily rotated in the negative direction, the movable member Further rotation in the negative direction is restricted by abutting against an abutment point such as a casing for restricting rotation in the negative direction. At this time, due to the operating force received in the negative direction, the movable member rotates around the abutment point as a fulcrum to lift the position of the cam portion and move toward the other end side due to the reaction force from the housing at the abutment point, Therefore, the axis of the first cam part is separated from the normal position, and the first cam part is mounted on the mountain part of the first terminal. Use this step-on point as the new center of rotation to go to the disengaged rotation position. However, in the present invention, if this is the case, the second cam portion formed integrally with the movable member and the first cam portion engages the engagement pressure receiving portion of the second terminal with the engagement pressure receiving portion of the second terminal. The engaging point is a fulcrum so that the movable part rotates in the positive direction, and the cam axis moves in the direction of returning to one end side so that the first cam part is separated from the stepping point and resets to the normal position. As a result, the movement of the first cam portion at the normal position to the other end side is restricted by the rising portion of the first terminal, so that the entire cam portion does not move toward the other end side and does not come off. Therefore, in the state where the cam portion returns to the normal position, the positive direction rotation of the movable member continues to the closed position.

In the present invention, it is preferable that, in the second terminal, the engaging pressed portion formed on the pressed portion is less engaged than the engaging pressed portion of the second cam portion when the movable member rotates in the normal direction A step-on point of one cam portion is located on the other end side in the longitudinal direction. With such a positional relationship, the first cam portion moves away from the step-on point at an early time while the movable member is rotating in the positive direction.

In the present invention, as described above, even if the movable member rotates in the negative direction before rotating in the regular positive direction, and the first cam portion climbs over the raised portion of the first terminal and climbs up the mountain portion, the subsequent movable The positive direction rotation of the movable member is carried out with the engagement point where the engagement pressed portion of the second terminal engages with the engagement pressed portion of the second cam portion as a fulcrum. As a result, the following effect can be obtained: the first cam portion is separated from the landing The tread point returns to the normal position where the movement to the other end side is restricted by the above-mentioned upright portion, the cam portion does not come off as a whole, and the movable member reliably reaches the closed position.

Description of drawings

1 shows the appearance of an electrical connector for flat conductors according to one embodiment of the present invention and flat conductors before connection, where (A) is a perspective view and (B) is a plan view.

Fig. 2 is a cross-sectional view of the movable part of the connector of Fig. 1 in an open position, (A) is a view of the position of the first terminal, (B) is a view of the position of the second terminal, and (C) is the position of the metal piece diagram.

Fig. 3 is a cross-sectional view of the movable part of the connector of Fig. 1 in a closed position, (A) is a view of the position of the first terminal, (B) is a view of the position of the second terminal, and (C) is the position of the metal piece diagram.

4 is a cross-sectional view showing a state in which the movable member of the connector of FIG. 1 temporarily rotates in the negative direction before being rotated in the positive direction (in a clockwise direction) from the open position in FIG. 2 , and (A) is the first terminal. The figure of the position, (B) is the figure of the position of the second terminal, (C) is the figure of the position of the metal part.

5 is a cross-sectional view showing a state in which the movable member rotates in the positive direction from the state of FIG. 4 and is in the disengaged rotation position when the first cam portion is mounted on the mountain portion of the first terminal at the open position, and (A) is a first The figure of the position of the first terminal, (B) is the figure of the position of the second terminal, (C) is the figure of the position of the metal part.

6 is a cross-sectional view showing the position of the first terminal when the movable member is further rotated in the positive direction from the position in FIG. 5 to move away from the housing.

FIG. 7 is an enlarged cross-sectional view showing the second cam portion of FIG. 4(B) and its periphery.

8(A) to (D) are cross-sectional views showing the position of the second terminal in various modified examples of the present invention.

Explanation of reference signs

1...connector; 3...movable part; 20...first terminal; 21...first movable arm; 21...first movable arm; 22...first fixed arm; 24...first pressed arm 24A...first pressed part; 25...first pressing movable arm part; 25A...first pressing part; 28A...upper edge; 28B...rising part; 28C...mountain-shaped part; ; 32... second fixed arm; 34... second pressed arm; 34A... second pressed part; 34A-1... engagement pressed part; 35... second pressing movable arm; 35A... second Pressing part; 55...first cam part; 55A...small cam radius part; 55B...large cam radius part; 56...second cam part; 56A...small cam radius part; 56B...large cam radius part; 56D, 56D1～3 ...Clamping pressure receiving part; 56E...Clamping point; F...Flat conductor.

detailed description

Embodiments of the present invention will be described below based on the drawings.

1 shows the appearance of the connector of the present embodiment and the front end portion of the flat conductor connected to the connector, which is a connection portion before connection. FIG. 1(A) is a perspective view, and FIG. 1(B) is a plan view.

In FIGS. 1(A) and (B), reference numeral 1 denotes an electrical connector for a flat conductor according to this embodiment, and reference numeral F denotes a flat conductor connected to the connector 1 .

The flat conductor F has a connecting portion connected to the above-mentioned connector 1 at its front end (in FIG. (bottom left in FIG. 1(A), bottom in FIG. 1(B)) extends long, but the part immediately behind the connection part is shown in the figure, and the part behind this part is omitted icon. In the present embodiment, the above-mentioned flat conductor F constitutes a connecting portion by removing the covering on the upper surface of the tip portion to expose the connecting circuit portion F1. In order to improve the strength when the connection part is connected to the connector, a reinforcing plate F2 is added to the lower surface of the connection part.

At the connecting portion of the above-mentioned flat conductor F, the two side edges in the width direction pass through the notch to form a locked portion F3. A claw-shaped locking portion formed on a metal fitting to be described later enters and is locked into the notch-shaped locked portion F3 , thereby contributing to preventing the flat conductor F from coming off.

The connection circuit portion F1 of the connection portion of the flat conductor F is provided with a pad F4 formed on each of the plurality of wiring portions arranged in the width direction, and the pads F4 are alternately formed in a staggered manner. There are pads F4A in the front row and pads F4B in the back row arranged in a shape. The pad F4A in the front row is connected to the first terminal 20 of two types of terminals (first terminal 20 and second terminal 30 ) included in the connector 1 , and the pad F4B in the rear row is connected to the second terminal 30 . Hereinafter, "first" is assigned to a part of the first terminal or another member positioned corresponding to the first terminal. "Second" is similarly assigned to the second terminal.

One connector 1 is composed of a connector body 2 and a movable member 3 movably supported by the connector body 2 (see also FIG. 2 ).

The connector main body 2 has: a housing 10 made of an electrically insulating material; two types of terminals, the first terminal 20 and the second terminal 30, which are made by maintaining the flat surface of the metal plate and held by the housing 10; Metal piece 40 made of metal plate and held by housing 10 . The first terminal 20 , the second terminal 30 and the metal piece 40 will be described in detail later.

The casing 10 is made of electrically insulating material, and has a substantially cuboid shape that is longer in the width direction of the above-mentioned flat conductor F and has a smaller height dimension. As can be seen from FIG. The first terminal groove 11 and the second terminal groove 12 are alternately formed in the width direction. The first terminal 20 and the second terminal 30 are respectively inserted and held in the two kinds of the first terminal groove 11 and the second terminal groove 12 correspondingly, and an arrangement range of the terminals is formed in the width direction. On the outside of the arrangement range of the terminals, a metal fitting groove 13 for holding the metal fitting 40 is formed to penetrate in the front-rear direction in the same slit shape as the first and second terminal grooves 11 and 12 .

As described above, the first terminal 20, the second terminal 30, and the metal fitting 40 are manufactured while maintaining the flat surface of the metal plate. The part groove 13 also makes the groove width on the terminal arrangement direction substantially equal to the plate thickness of the first terminal 20, the second terminal 30 and the respective plate thickness of the metal part 40. In Fig. 2 (A), (B) and (C) , let the direction perpendicular to the paper surface be the above-mentioned groove width.

The first terminal groove 11, the second terminal groove 12 and the metal part groove 13 are between the upper wall 14 and the bottom wall 15 of the housing 10 as seen in Fig. 2 (A), (B) and (C) respectively. It is formed by penetrating in the front-rear direction (right and left in the figure). The first terminal groove 11, the second terminal groove 12 and the metal piece groove 13 are communicated with each other at the central position in the height direction by a communication groove extending in a direction at right angles to the paper surface of FIG. The groove forms a receiving opening 16 opened toward the rear, and the connecting portion of the above-described flat conductor F can be introduced into the receiving opening 16 . Thereby, the first terminal groove 11, the second terminal groove 12 and the metal piece groove 13, their rear regions are separated up and down by the above-mentioned receiving opening 16, and are respectively formed on the lower surface of the upper wall 14 and the bottom wall 15. The upper surface 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, and a metal piece upper groove 13A and a metal piece lower groove 13B.

The first terminal groove 11, the second terminal groove 12, and the metal part groove 13 are also communicated at their front parts. That is, the front portions of the first terminal groove 11 , the second terminal groove 12 , and the fitting groove 13 communicate with each other through the open space 17 formed above the bottom wall 15 of the housing 10 . Thus, in the front part, the upper wall 14 is cut out, and this open space 17 can accommodate the movable part 3 and allow the movable part 3 to turn. The above-mentioned upper wall 14 is in the position of the metal fitting groove 13 on both ends in the terminal arrangement direction, as seen in FIG. The part is fully elastically displaced upward.

In the above-mentioned first terminal groove 11, second terminal groove 12 and metal piece groove 13, along the front-rear direction, in the part between the above-mentioned open space 17 at the front and the receiving opening 16 at the rear, respectively, upper and lower Island-shaped position restricting portions 18A, 18B, and 18C are formed between the upper wall 14 and the bottom wall 15 in the direction to connect the opposing inner surfaces of the grooves to each other. The position regulating parts 18B and 18C provided in the second terminal groove 12 and the fitting groove 13 are located at the same position in the front-rear direction, and are located in front of the position regulating part 18A provided in the first terminal groove 11 .

In the terminal arrangement direction, on the part of the bottom wall 15 corresponding to the above-mentioned first terminal groove 11, second terminal groove 12 and metal part groove 13, there are formed first terminals 20, second terminals 30, And the fixing part of the metal part 40. The fixing portion 19A of the first terminal groove 11 is formed by the thickness of the front end portion of the bottom wall 15 to form a tapered portion, and the fixing portions 19B and 19C of the second terminal groove 12 and the metal fitting groove 13 are formed by the thickness of the rear end portion of the bottom wall 15 . Formed to form a cone.

The first terminal 20, the second terminal 30, and the metal piece 40 inserted and held in the above-mentioned first terminal groove 11, second terminal groove 12, and metal piece groove 13, respectively, are all manufactured while maintaining a flat surface of the metal plate, which is approximately Horizontal H shape, in the first terminal 20 and the second terminal 30, respectively have the movable arm part 21, 31 located in the upper part and the fixed arm part 22, 32 located in the lower part. The connection parts 23 and 33 are connected. Moreover, the metal fitting 40 has an upper arm part 41 located above and a lower arm part 42 located below it, and both are connected by the connection part 43 located in the middle part. The connecting portion 23 of the first terminal 20 is located in front of the corresponding position restricting portion 18A, and the connecting portion 33 of the second terminal 30 and the connecting portion 43 of the metal fitting 40 are located in front of the respective corresponding position restricting portions 18B and 18C. located at the rear.

For the first terminal 20, as seen in FIG. The intermediate position between the connecting parts 23, however, extends forward to a position slightly forward of the front end. The first movable arm portion 21 has a shape extending forward in a substantially horizontal direction after being formed upwardly via the inclined portion 24B at a portion forward of the first connecting portion 23 , and the first movable arm portion constitutes the first movable arm portion at this horizontal portion. The pressing arm portion 24 constitutes a first pressing movable arm portion 25 at a position rearward of the above-mentioned first connecting portion 23 . The above-mentioned first pressed arm portion 24 is formed with a relatively shallow concave first pressed portion 24A at the lower edge near its front end, and a first pressing portion protruding downward is provided at the rear end of the first pressing movable arm portion 25 . Section 25A. The first pressed portion 24A is formed in a shallow concave shape as described above, and functions as a guide portion that guides the rotation of a cam of the movable member 3 described later. In such a first movable arm portion 21, when the above-mentioned first pressed portion 24A receives an upward force from the movable member 3 described later, the position of the first connecting portion 23 is assumed to be based on the principle of leverage. The fulcrum bends and tilts the above-mentioned first pressing movable arm portion 25 downward. The above-mentioned first pressed portion 24A forms a shallow concave shape by forming an inclined portion in the front and rear regions and forming a straight portion in the middle region as seen in FIG. 2(A) .

For the first fixed arm portion 22 of the first terminal 20, the rear portion extends to the same position in the front-rear direction as the first pressing movable arm portion 25 of the first movable arm portion 21, and the front portion extends to the front-rear direction. The upper portion extends forward than the first pressed arm portion 24 of the first movable arm portion 21 and its front end protrudes outside the housing. The first fixed arm portion 22 has a first front fixed arm portion 26 and a first rear fixed arm portion 27 front and rear relative to the position of the first connection portion 23 . The first front fixed arm portion 26 is formed in a stepwise manner from a position close to the connecting portion 23 in the front-rear direction, and has: an upper edge portion 28A raised to an intermediate position in the height direction and extending laterally; 28A standing upright portion 28B; a mountain-shaped portion 28C whose top is located at the upper end of the rising portion 28B and extending in the lateral direction; and a first connecting portion 29 protruding forward from the lower position of the mountain-shaped portion 28C toward the outside of the housing .

The above-mentioned first connection portion 29 extends downward in a curved manner having a lower edge located slightly below the bottom surface of the bottom wall 15 of the housing 10, and the lower edge can be bonded to a corresponding circuit surface corresponding to the circuit board. Solder connection. On the rear edge side of the first connection portion 29 , a first fixed portion 29A in the shape of a cut-in groove is formed, and the first fixed portion 29A faces the tapered fixed portion 19A formed on the bottom wall 15 of the housing 10 . And undertake the task of fixing the first terminal 20 to the housing 10 .

The first rear fixed arm portion 27 of the first fixed arm portion 22 of the first terminal 20 extends rearward from the position of the first connecting portion 23 and reaches the first contact with the first movable arm portion 21 in the front-rear direction. The position corresponding to the pressing part 25A. At the rear end of the first rear fixed arm portion 27 is provided a first support portion 27A that faces the first pressing portion 25A of the first movable arm portion 21 and protrudes upward. The first pressing portion 25A and the first support portion 27A positioned oppositely press the flat conductor F, but when the connection circuit portion F1 is provided on the upper surface of the flat conductor F as shown in FIG. The circuit portion F1 is electrically contacted and connected, but when the connection circuit portion is formed on the lower surface, the first support portion 27A is electrically connected, and when the connection circuit portion is formed on both surfaces, both are electrically connected to the connection circuit.

The thus formed first terminal 20 is inserted into the first terminal groove 11 from the front toward the rear. When inserted to a predetermined position, the locking protrusion 27B formed on the first rear fixing arm part 27 bites into the lower surface of the position regulating part 18A, and the first fixed part 29A of the first front fixing arm part 26 fits into the case 10. The fixing portion 19A of the bottom wall 15 is fixed, thereby preventing the above-mentioned first terminal 20 from coming off.

The second terminal 30, as seen in FIG. Extends long to the vicinity of the rear end of the casing 10 . For the second movable arm portion 31 , the portion forward of the second connecting portion 33 constitutes the second pressed arm portion 34 , and the portion rearward of the second connecting portion 33 constitutes the second pressing movable arm. Section 35. On the lower edge of the second pressed arm portion 34, a slightly concave and curved second pressed portion 34A is formed, and the rear end of the second pressing movable arm portion 35 is provided with a second pressing portion protruding downward. Pressing part 35A. In such a second movable arm portion 31, when the second pressed portion 34A receives an upward force from a cam portion of the movable member 3 described later, the force of the second connecting portion 33 will increase due to the principle of leverage. The position is a fulcrum so that the above-mentioned second pressing movable arm portion 35 bends and tilts downward.

For the second fixed arm portion 32 of the second terminal 30, the front portion extends in the front-rear direction to approximately the same front position as the second pressed arm portion 34 of the second movable arm portion 31 to form a second arm portion. The rear portion of the front fixed arm portion 36 extends rearward from the second connecting portion 33 to form a second rear fixed arm portion 37 , and the rear end of the second rear fixed arm portion 37 protrudes outside the housing. The second front fixed arm portion 36 has a linear cam contact portion 38A formed on the upper edge of the cam support portion 38 at the front portion thereof. In the second rear fixed arm portion 37 , a second support portion 37A protruding upward and opposed is provided at the same position in the front-rear direction as the second pressing portion 35A.

The above-mentioned second pressing portion 35A and the second supporting portion 37A opposed to each other are the same as the case of the first terminal 20 to crimp the flat conductor F. Either one can be electrically connected to the flat conductor, or both can be used to connect the flat conductor. electrical connection.

For the cam support portion 38 of the second front fixed arm portion 36, the upper edge is located at the same position as the lower edge of the island-shaped position limiting portion 18B of the housing 10, or slightly closer to the lower edge of the position limiting portion 18B. The cam abutment portion 38A constituting a linear edge extending in the lateral direction is formed at a position below the cam. The cam contact portion 38A is formed in a range extending forward and backward relative to the second pressed portion 34A in the front-rear direction.

In the second front fixed arm portion 36 , in the front-rear direction, between the cam abutting portion 38A and the second coupling portion 33 , and at a position corresponding to the position restricting portion 18B of the housing 10 , an upward facing Protruding locking protrusion 36B.

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

The second connecting portion 39 protruding from the rear end of the second rear fixing arm portion 37 is bent downward so as to have a lower edge located slightly below the bottom surface of the bottom wall 15 of the housing 10. Extending, the lower edge can be bonded to the corresponding circuit surface corresponding to the circuit substrate for soldering connection. On the front edge side of the second connecting portion 39, a second fixed portion 39A cut into a groove shape is formed. The task of fixing the two terminals 30 to the housing 10 .

The thus formed second terminal 30 is inserted into the second terminal groove 12 from the rear toward the front. When inserted into a predetermined position, the second front fixed arm portion 36 of the second fixed arm portion 32 penetrates between the bottom wall 15 of the casing 10 and the island-shaped position limiting portion 18B, and is formed in the second front fixed arm portion 36. The locking protrusion 36B bites into the lower edge of the above-mentioned position restricting portion 18B, and the second fixed portion 39A of the second rear fixing arm portion 37 is fitted into the fixing portion 19B of the bottom wall 15 of the housing 10 to be fixed, thereby preventing The above-mentioned second terminal 30 is detached.

The metal member 40 is made into a shape similar to that of the second terminal 30 as seen in FIG. The width (dimension in the vertical direction) of the upper arm portion 41 corresponding to 31 is relatively large, and although the locking portion 45A at the rear end is formed in the same shape as the second pressing portion 35A of the second terminal 30, it is formed larger, and is different from the second terminal 30. The rear end of the lower arm portion 42 corresponding to the second rear fixing arm portion 37 of the terminal 30 does not have a portion corresponding to the second support portion 37A of the second terminal 30 . Other than that, it is the same as the second terminal 30 , so the number of the second terminal 30 is changed to a number of "40" by adding "10", and the description thereof will be omitted.

The above-mentioned locking portion 45A of the metal fitting 40 protrudes downward in the shape of a large hook, the front edge is approximately at right angles to the front-back direction, and the rear edge forms an oblique edge toward the lower end. Above the movable arm portion 45 of the upper arm portion 41 where the locking portion 45A is formed, the upper wall 14 of the casing is largely cut away, and the locking portion pressed by the front end of the inserted flat conductor F 45A, the flat conductor F can be further inserted into a predetermined position by causing elastic deflection so as to incline further upward.

In this way, the movable member 3 is movably, and in this embodiment, rotatably supported in the connector body 2 configured by holding the first terminal 20 , the second terminal 30 , and the metal fitting 40 in the housing 10 .

As seen in FIGS. 1(A) and (B), the movable member 3 is a member extending substantially over the entire width of the case 10 and is made of the same electrically insulating material as the case 10 .

The movable member 3 is supported rotatably between an open position seen in FIG. 2 and a closed position seen in FIG. 3 . In FIG. 2 , the axis of rotation of the movable member 3 is located at the lower half of the movable member 3 , which is housed in an open space 17 formed at the front of the casing 10 . In FIG. 2 , the upper half portion outside the open space 17 and protruding upward from the upper wall 14 of the housing 10 serves as an operation portion 51 for the user to rotate the movable member 3 . The above-mentioned movable member 3 has a cam portion composed of a first cam portion 55, a second cam portion 56, and a third cam portion 57 to be described later, and is rotatable due to the presence of the cam portion, but the rotation axis of the cam portion itself The position of is not fixed relative to the housing 10, but can be moved relative to the housing 10. That is, the movable member 3 rotates around the rotational axis of movement according to the situation. In addition, the rotation axes are on the same straight line as for the first cam portion 55 , the second cam portion 56 , and the third cam portion 57 described above.

In the lower half of the above-mentioned movable part 3 in FIG. The position corresponding to the second terminal 30 and the metal piece 40 is formed to allow the first pressed arm portion 24 of the first terminal 20 , the second pressed arm portion 34 of the second terminal 30 and the upper arm of the metal piece 40 to penetrate forward and backward. The slit-shaped first groove portion 52 , the second groove portion 53 , and the third groove portion 54 enter from the front portion of the portion 41 . Therefore, the groove widths of the first groove portion 52, the second groove portion 53, and the third groove portion 54 (the width of the groove inner surfaces in a direction perpendicular to the paper surface) are formed to be larger than those of the first terminal 20, the second groove portion 54, and the groove width. Each of the terminal 30 and the metal fitting 40 has a slightly larger plate thickness. The first groove portion 52 , the second groove portion 53 , and the third groove portion 54 are respectively provided with a first cam portion 55 , a second cam portion 56 , and a third cam portion 57 that connect groove inner surfaces to each other.

As seen in FIG. 2(A), the first cam portion 55 provided on the first groove portion 52 positioned corresponding to the first terminal 20 is located at the lower portion of the above-mentioned first groove portion 52 of the movable member 3 in the open position. , and has a horizontally long oblong section. In the posture seen in FIG. 2(A) in which the movable member 3 is in the open position, the height dimension ratio of the first cam portion 55 is set to be The lateral dimension is set to be larger than the distance between the first pressed portion 24A and the upper edge portion 28A. In FIG. 2(A), the rotation center X of the first cam portion 55 is located on the curvature center of the right arc portion of the oblong section and on the extension line of the rotation axis of the movable member 3 . Therefore, a straight line having the rotation center X as one end and an arbitrary point on the arc portion of the first cam portion 55 as the other end becomes a cam radius. Thereby, among the arc portions on the left and right sides of the first cam portion 55, the arc portion on the right side where the rotation center X is located in FIG. 2(A) forms a small cam radius portion 55A, and the arc portion on the left side forms Large cam radius portion 55B. The small cam radius portion 55A forms a sliding contact range with the above-mentioned raised portion 28B serving as a cam contact portion. Since the lateral dimension of the first cam portion 55 in the posture seen in FIG. 2(A) has the above-mentioned relationship with respect to the distance between the first pressed portion 24A of the first terminal 20 and the upper edge portion 28A, the above-mentioned large The cam radius portion 55B has the function of holding the first pressed arm portion 24 of the first movable arm portion 21 of the first terminal 20 when the first cam portion 55 is rotated to the closed position in FIG. The concave portion-shaped first pressed portion 24A is pressed upward to elastically displace it with a sufficient cam radius. For the above-mentioned small cam radius portion 55A, there are some gaps between the open position seen in FIG. However, the position of the rotation center X is stabilized by being housed in the arc-shaped portion 28A- 1 as it rotates toward the closed position.

As seen in FIG. 2(B), the second cam portion 56 provided at the second groove portion 53 positioned corresponding to the second terminal 30 is formed as a small cam radius portion 56A having a large arc on the right side and a small cam radius portion 56A on the left side. The large cam radius portion 56B having a small circular arc on its side is roughly fan-shaped, the rotation center X is at the same position as the first cam portion 55, and constitutes the above-mentioned small cam that forms a sliding contact range with the cam abutting portion 38A. The center of curvature of the arc of the radius portion 56A. With respect to the rotation center X, the cam abutting portion 38A of the cam support portion 38 is located below the mountain portion 28C of the first terminal 20, so the small cam radius portion 56A in contact with the cam abutting portion 38A The cam radius is larger than that of the first cam portion 55 , and there is a constant cam radius difference relative to the first cam portion 55 regardless of the rotational angle position. The large cam radius portion 56B of the second cam portion 56 has the same characteristics as the large cam radius portion 55B of the first cam portion 55 that when the second cam portion 56 rotates around the rotation center X to the closed position in FIG. 3 , A sufficient cam radius is required to press the second pressed portion 34A of the second pressed portion of the second terminal 30 upward to elastically displace the pressed arm portion 34 .

In FIG. 2(B), the above-mentioned second cam portion 56 has an edge 56C on the upper side (right side in FIG. 3(B)) of the small cam radius portion 56A moved from the large cam radius portion 56B on the left to the small cam radius portion 56A on the right. , an engagement pressure receiving portion 56D is provided in a protruding shape. In FIG. 2(B) , the engagement pressure receiving portion 56D is located near the left end of the second pressure receiving portion 34A of the second terminal 30 . The concave second pressed portion 34A is formed in a concave and curved shape, and as a result, the portion near the right end constitutes a right-down slope to form the engagement pressed portion 34A- 1 .

As seen in Fig. 2 (C), the third cam portion 57 provided at the third groove portion 54 positioned correspondingly to the metal piece 40 is made to be similar to the above-mentioned second cam portion 56 positioned at the second groove portion 53. shape, and is formed into a substantially sectoral shape having a small cam radius portion 57A with a large arc on the right side and a large cam radius portion 57B with a small arc on the left side, and the rotation center X is in the same position as the first cam portion 55 and the second cam portion 55. The center of rotation of the cam portion 56 coincides with the center of curvature of the circular arc of the small cam radius portion 57A that forms a sliding contact range with the cam contact portion 48A. With respect to the rotation center X, the cam abutment portion 48A of the cam support portion 48 is located below the mountain-shaped portion 28C of the first terminal 20 similarly to the second cam portion 56 , so it is in the same position as the above-mentioned cam abutment portion 48A. The cam radius of the adjacent small cam radius portion 57A is larger than the cam radius of the first cam portion 55, and there is a constant cam radius difference regardless of the rotation angle position. The large cam radius portion 57B of the third cam portion 57 has the same characteristics as the large cam radius portion 55B of the first cam portion 55 that when the third cam portion 57 rotates around the rotation center X to the closed position in FIG. 3 , A sufficient cam radius is required to press the pressed arm portion 44 of the upper arm portion 41 of the metal fitting 40 upward at the pressed portion 44A to elastically displace it.

In FIG. 2(C), the above-mentioned third cam portion 57 has an edge 57C on the upper side (right side in FIG. 3(C)) of the small cam radius portion 57A moved from the left large cam radius portion 57B to the right portion A step-shaped sinking portion is formed, and a corner portion obtained by providing the sinking portion is used as an engagement pressure receiving portion 57D. The engagement pressure receiving portion 57D performs the same function as the engagement pressure receiving portion 56D of the second cam portion 56 when the movable member 3 rotates in the negative direction (counterclockwise) from the position in FIG. 2C .

The connector of the present embodiment configured in this manner functions in the following manner.

First, the connector 1 is arranged at a predetermined position on a circuit board (not shown), and the first connection portion 29 of the first terminal 20, the second connection portion 39 of the second terminal 30, and the metal fitting 40 are fixed by soldering. The portion 49 is connected and fixed by soldering to a corresponding portion of the circuit board.

With regard to the connector 1 mounted on the circuit board in this way, the movable member 3 is brought to the open position in which the movable member 3 is in a vertical posture as seen in FIG. state, thereby forming a state where the flat conductor F can be inserted.

Next, the connecting portion of the flat conductor F is inserted forward into the above-mentioned receiving opening portion 16 . Between the first pressing portion 25A of the first movable portion 21 of the first terminal 20 and the first supporting portion 27A of the first fixed arm portion 22 , the second pressing portion of the second movable arm portion 31 of the second terminal 30 35A and the second support portion 37A of the second fixed arm portion 32 have an interval slightly wider than the thickness of the connection portion of the flat conductor F, so that the connection portion of the flat conductor F is easily inserted. However, regarding the above-mentioned metal fitting 40, the distance between the locking portion 45A of the upper arm portion 41 of the metal fitting 40 and the lower arm portion 42 is narrower than the thickness of the connecting portion of the flat conductor F, so the flat conductor F is located between the above-mentioned metal fittings 40. The locking portion 45A is lifted up at the front end to advance to a predetermined position, and the locking portion 45A enters the notch-shaped locked portion F3 of the flat conductor F, whereby the flat conductor F is temporarily held.

Next, as seen in FIG. 3 , as a normal operation sequence for cable connection, the movable member 3 is rotated from the open position in FIG. 2 in the forward direction (clockwise) to the closed position in the horizontal posture. By this rotation, the first cam portion 55, the second cam portion 56, and the third cam portion 57 of the movable member 3 rotate around the rotation center X, and their small cam radius portions 55A, 56A, and 57A are positioned at the corresponding first cam portions. The upper edge portion 28A of the terminal 20, the second terminal 30, and the cam abutment parts 38A, 48A of the metal piece 40 are in sliding contact, and the large cam radius portions 55B, 56B, 57B press the corresponding first terminal 20, second terminal upward. The second pressed portions 24A, 34A, and 44A of the terminal 30 and the metal fitting 40 , respectively. As a result, the first terminal 20, the second terminal 30, and the metal piece 40 lift their first pressed arm portion 24 of the first movable arm portion 21 and the second pressed arm portion of the second movable arm portion 31, respectively. 34 and the pressed arm portion 44, based on the principle of leverage, the first pressing movable arm portion 25, the second pressing movable arm portion 35, and the movable arm portion 45 bend downward respectively, and the first pressing portion 25A and the second pressing portion The portion 35A presses the upper surface of the flat conductor F downward, and the locking portion 45A further displaces downward and maintains its position. Therefore, the flat conductor F has a predetermined contact pressure, contacts the first pressing portion 25A and the second pressing portion 35A functioning as the contact portion of the first terminal 20 and the second terminal 30, and forms an electrical connection. The locking portion 45A is reliably prevented from being pulled out at the locking portion F3.

Next, the movable part 3 is not subject to the normal operation of rotating from the posture of FIG. 2 to the posture of FIG. 3 in the positive direction, but turns from the posture of FIG. 2 to the negative direction temporarily to the posture of FIG. The direction will be described with reference to the posture in FIG. 5 and the operation when the posture in FIG. 5 is rotated toward the closed position, which is less preferable but frequently performed.

When the movable member 3 assumes the posture shown in FIG. 4 by being rotated in the negative direction, the rear surface (left side in FIG. 4 ) of the operating portion 51 of the movable member 3 abuts against the corresponding restricting portion of the casing 10 . At the moment when the abutment is carried out, the movable part 3 receives a force in the negative direction, and the lower part of the movable part 3 where the cam part of the movable part 3 is located tries to move toward the center of the abutment point located at the restricting part of the housing. Turn counterclockwise to move. As described above, for the cam parts, the first cam part 55, the second cam part 56, and the third cam part 57 rotate on the same axis as the cam axis, but they are not controlled so that the position of the cam axis itself is constant. support, so the first cam portion 55, the second cam portion 56, and the third cam portion 57 are lifted, and the movable member 3 receives a force from the housing 10 to the right at the abutment point, that is, a reaction force, so it is consistent with the above-mentioned lifting force. As a result, the movement to the right should be restricted by the upright portion 28B of the first terminal 20. The first cam portion 55 is stuck between the upright portion 28B and the mountain as shown in FIG. 4(A). When the corner formed by the shape part 58C, and then the movable member 3 rotates in the positive direction to become a vertical position (equivalent to the posture in FIG. The portion 28B climbs up on the mountain-shaped portion 28C as shown in FIG. 5(A) . The position of the cam portion in such FIG. 4(A) and FIG. 5(A) is a disengaged rotational position deviated from the earliest normal position.

In this way, when the first cam portion 55 reaches the disengagement rotation position, if the second cam portion does not take the existing movable member of the countermeasure of this embodiment, it will move from the open position where the movable member 3 of FIG. When the closed position is further rotated in the forward direction, based on the operating force, it moves away from the casing 10 as shown in FIG. 6 during the forward rotation.

However, in the present embodiment, the second cam portion 56 is provided with a protruding engagement pressure receiving portion 56D, and the movable member 3 moves from the posture in which the movable member 3 rotates in the negative direction to the position shown in FIG. 5(B) as shown in FIG. 4(B) . ) is moving in the positive direction, the engagement pressure receiving portion 56D engages with the second pressure receiving portion 34A of the second terminal 30 upward, and engages with the second pressure receiving portion 34A. The engaging point 56E, which is the contact point, moves from left to right. The engagement point forms an engagement pressed portion that moves on the second pressed portion 34A when viewed from the second pressed portion 34A. In addition, this engagement point is always located on the protrusion-shaped engagement pressure receiving portion 56D with respect to the second cam portion 56 , and is a fixed point.

In addition, in this situation, as seen in FIG. 7 which enlargedly shows the second cam portion 56 in FIG. 4(B), since the second pressed portion 34A has a concave curved shape, the second pressed portion 34A The right-end region 34A-R becomes the inclination of the lower right slope.

Therefore, when the engagement point 56E, that is, the position of the engagement pressed portion 34A-1 moved on the second pressed portion 34A, reaches the right end region 34A-R of the inclination which becomes the above-mentioned lower right slope, the inclination will be reversed. In the right end region 34A-R, further movement of the engagement pressure receiving portion 56D of the second cam portion 56 is prevented, and rightward movement stops at a boundary position where further movement cannot be performed. However, the movable member 3 continues to be rotated in the positive direction at the above-mentioned boundary position, and is about to rotate in the positive direction. Therefore, the second cam portion 56 moves in the positive direction from the above-mentioned boundary position (for example, the boundary position ML shown in FIG. Torque is received in the same direction as the operating force of the rotation. Receiving this torque, the second cam portion 56 tends to rotate in the positive direction with the boundary position ML as an instantaneous center, and receives a pressing force to the left to move to the left. Therefore, the first cam portion 55 integrally formed with the second cam portion 56 tends to rotate in the above-mentioned positive direction, and tends to move to the left, although it is located at a different position in the axial direction from the second cam portion 56 . Since the second cam portion 56 receives a downward force, that is, a reaction force, from the second pressed arm portion 34 of the second terminal 30 due to its elastic deflection, the downward force is of course also transmitted to the first cam portion 55 . Therefore, the first cam portion 55 receives a leftward force and a downward force at the same time when the second cam portion 56 rotates in the positive direction with the aforementioned boundary position ML as the momentary center, so that it will stand up from the first terminal. The corner portion of the moving position of the portion 28B to the mountain portion 28C is in the state of the dotted line position in FIG. 7 of the boarding portion Q, and intends to move away in the lower left direction and return to the normal position on the upper edge portion 28A. Thereby, the first cam portion 55 returned to the normal position becomes the state of FIG. 2(A), the rightward movement is prevented by the upright portion 28B, and the movable member 3 reaches the closed position based on normal rotation in the positive direction.

In the present invention, even if the engagement pressure receiving portion 56D formed on the second cam portion 56 is not in the protruding shape shown in the above figure and is not in the position shown in the above figure, it can also be used as a device having the same effect. Various deformations can be performed according to the protruding shape of the function. For example, if the above-mentioned engagement pressure receiving portion 56D is in the posture of FIG. The center position of the upper edge portion of the cam portion 56 is located at the right end, and the right end can also be used as a simple corner portion as shown in FIG. The right part of the upper edge is formed in a step-like manner, and the step-like corner is used as the engagement pressure receiving part 56D-3, and the second cam part 56 may also be formed as shown in FIG. 8(D). It is a horizontally long ellipse having the same shape as the above-mentioned first cam portion 55, and the right portion of the second cam portion 56 engages with the hook portion 34A-2 formed on the right end of the second pressed arm portion 34 of the second terminal 30. The right part is used as the engagement pressure receiving part 56D-4.

In this embodiment, as seen in FIG. 7, as an example of a preferable positional relationship between the boundary position (ML) of the engagement point 56E and the front-rear direction of the riding portion Q of the first cam portion 55, the phase relationship of the engagement point 56E is shown in the figure. Even if the front and rear positional relationship is reversed in the case of being located in front of the riding portion Q, the second cam portion 56 rotates in the positive direction with the engaging point 56E as a fulcrum and retreats to the left, so the same effect can be obtained.

Claims (2)

1. an electrical connector for flat conductive member,

Fixing arm and the movable arm of arm set in the way of mutually extending in the same direction side by side It is placed in the terminal maintaining the tabular surface of metallic plate and formed,

Above-mentioned fixing arm and movable arm length direction pars intermedia by linking part interconnected and Be formed as parts,

Above-mentioned fixing arm is by the fixing holding of housing, and movable arm is constituted in length direction end side to be pressed Splenium and another side constitute by splenium,

When the movable member by rotating operation is carried out from the open position court being inserted into strap When the positive direction of make position rotates, the cam part cam based on ormal weight of this movable member becomes Position amount and press above-mentioned movable arm by splenium, make this by splenium including the plane of terminal Face in conjugate, by this by the displacement of splenium, more than movable arm state linking part be fulcrum be thick stick Shaft-like carry out angular deflection and make press section conjugate, this press section apply to press pressure to strap,

Above-mentioned electrical connector for flat conductive member is characterised by,

Multiple above-mentioned terminals arrange on the direction at a right angle with the tabular surface of this terminal,

Above-mentioned multiple terminals at least have different the first terminals and the second terminal,

For cam part, on a camshaft line, there is with the first terminal the first cam accordingly Portion, and with the second terminal, there is the second cam part accordingly, and when movable member is rotated During operation, the position of above-mentioned camshaft line self is in movable state and turns around above-mentioned camshaft line It is dynamic,

The first terminal has the above-mentioned fixed arm in the scope opposed by splenium with movable arm The stepped rising portions erected of other end side position of the rising wood in portion, and at this rising portions Top is formed with mountain-shaped part, this rising portions limit movable member in the first cam part towards another side Mobile, and formed the first cam part to above-mentioned movable member by above-mentioned rising wood and rising portions The rotation guide portion guided around the rotation of the camshaft line of normal position,

The rising wood of the fixing arm of the second terminal is corresponding in the rotation guide portion with the first terminal Scope forms the straight part extended to length direction,

Cam part has: little cam radius portion, and when movable member is in an open position, this is little convex Wheel radius portion makes the rotation respectively with above-mentioned fixing arm of the first cam part and the second cam part guide Portion or straight part contact or and rotation guide portion or the straight part of above-mentioned fixing arm between Form gap；And big cam radius portion, this big cam radius portion is by than above-mentioned little cam radius portion Big cam radius is formed, and can be applied to connect by splenium to above-mentioned when movable member arrives make position Press,

When movable member open position to negative direction rotate after to positive direction by rotating operation time, Make the first cam part climb up mountain-shaped part owing to the positive direction of movable member rotates, a little become stepping on to step on Under the new state departing from turned position of the first cam part, the movable arm of above-mentioned second terminal Had by splenium stop this by splenium by press from the contact of the second cam part by pressure point Towards the engaging of other end side shifting by splenium on above-mentioned length direction, and above-mentioned second cam part Have and engage the engaging compression zone engaged by splenium with this, thus by movable member with above-mentioned engaging It is that fulcrum rotates to positive direction by splenium and the block chalaza engaging compression zone, it is possible to make the first cam part A little leave from stepping on to step on and make camshaft line reset to normal position,

Under the posture that movable member is in an open position,

The height dimension of the first cam part than the first terminal first by splenium and the interval of mountain-shaped part It is little,

The cam abutting portion of the cam support of the second terminal is positioned at the mountain-shaped part than the first terminal Position on the lower.

Electrical connector for flat conductive member the most according to claim 1, it is characterised in that

In the second terminal, it is formed at by the engaging of splenium by splenium, in the positive direction of movable member In rotation, engaging compression zone the stepping on to step on and a little growing compared to above-mentioned first cam part of the second cam part Degree is positioned at other end side on direction.