JP6960846B2 - Electrical connector for flat conductor - Google Patents

Description

The present invention relates to an electric connector for a flat conductor arranged on a mounting surface of a circuit board and to which a flat conductor is connected.

This type of electrical connector is disclosed, for example, in FIG. 7 of Patent Document 1, in which the terminal has a lower arm portion and an upper arm portion connected to the lower arm portion by a connecting portion, and the lower arm portion has a lower arm portion. It has a fixed arm that is fixedly held by the bottom wall of the housing, and a front contact arm and a rear contact arm that extend from two different positions of the fixed arm in directions close to each other and can flex and displace independently. A front contact portion is provided at the rear end of the front contact arm portion, and a rear contact portion is provided at the front end of the rear contact arm portion, and the positions of the front contact portion and the rear contact portion are close to each other in the front-rear direction. The connecting portion connects the upper arm portion and the lower arm portion, and is formed as an arm portion that forms a direction perpendicular to the front-rear direction and extends in the vertical direction.

On the other hand, the upper arm portion has a pressing arm portion behind the connecting portion and a pressured arm portion in front of the connecting portion, and is operated by a rotatable movable member that engages with the compressed arm portion formed at the front end of the pressured arm portion. The front end of the pressured arm is lifted, the pressing arm bends downward with the connecting portion at the intermediate position as a fulcrum, and the pressing portion formed at the rear end of the pressing arm is displaced downward to form a flat conductor. Is pressed against the front contact portion and the rear contact portion.

Therefore, the flat conductors are provided on the front contact portion and the rear contact arm portion, which are elastically displaced independently of each other, and come into contact with each other at two locations, the front contact portion and the rear contact portion, which are close to each other, so that the contact is ensured. Will be done.

Patent No. 4993788

In this type of connector, the anterior-posterior contact arm and the posterior contact arm are located adjacent to each other in the anterior-posterior direction, but at different positions so that they can be elastically displaced independently. , It becomes a long terminal in the front and back as a whole. Further, since the front contact portion of the front contact arm portion and the rear contact portion of the rear contact arm portion are provided so as to be close to each other in the front-rear direction, these contact portions are located at the rear end of the terminal from the position of the connecting portion. It will be located in the middle of the distance to the position. Therefore, the pressing arm portion of the upper arm portion located behind the connecting portion has an arm length extending from the position of the connecting portion to the intermediate position, that is, a position close to both the front contact portion and the rear contact portion in the front-rear direction. .. The pressing arm portion is required to have a constant arm length because it is elastically displaced so as to press the flat conductor with the pressing portion. As a result, the arm length of the compressed arm portion located in front of the connecting portion is shortened. The shortening of the arm length of the pressured arm means that the rigidity of the pressured arm is increased, which means that the movable member is operated with a large force in order to lift the pressured arm upward. On the other hand, if this force is suppressed to a low value, the pressing arm portion is elastically displaced downward, so that the moment transmitted to the pressing arm portion becomes small. If the position of the connecting portion is moved backward and set, the arm length of the front contact arm portion, which is substantially the same as the arm length of the pressing arm portion, becomes shorter, and the front contact arm portion is less likely to be elastically displaced.

In view of such circumstances, the present invention is a flat type having a terminal capable of increasing the arm length of the front contact arm portion to increase the elastic displacement amount and securing or increasing the elastic displacement amount of the pressing arm portion as much as possible. An object of the present invention is to provide an electric connector for a conductor.

The electric connector for a flat conductor according to the present invention has a flat housing in which a receiving portion for receiving a connecting portion formed in the front end region of the flat conductor is opened rearward between a bottom wall and an upper wall. It is made of a surface metal plate and has a plurality of terminals arranged and held by a housing in a direction perpendicular to the flat surface, and the terminals are located on the bottom wall side of the housing and extend in the front-rear direction along the bottom wall. It has a lower arm portion, an upper arm portion located on the upper wall side of the housing and extending in the front-rear direction along the upper wall, and a connecting portion connecting the lower arm portion and the upper arm portion at an intermediate position in the front-rear direction. However, the lower arm portion has a contact portion for contacting the connecting portion of the flat conductor, and the upper arm portion displaces the flat conductor so as to press the flat conductor toward the lower arm portion from the connecting portion. Engage with a movable member that is held in the rear position and causes an upward displacement with respect to the upper arm portion in front of the connecting portion in order to bring a downward displacement to the pressing portion, and presses upward. It has a pressure-sensitive part.

In such an electric connector for a flat conductor, in the present invention, the lower arm portion extends from the fixed arm portion which is in contact with the upper surface of the bottom wall and is fixedly held by the bottom wall, and a position rearward from the connecting portion. It has two flexible contact arms, and the two contact arms have anterior contact arm and a posterior contact arm formed at different positions in the anteroposterior direction, and the anterior contact arm has an anterior contact arm and a posterior contact arm. A rear contact part is provided in the part,
The upper arm portion has a pressing arm portion formed with a pressing portion for pressing the flat conductor against the front contact portion and the rear contact portion at a position rearward from the connecting portion, and the upper arm portion is directed upward by a movable member at a position forward from the connecting portion. It has a pressured arm part on which a pressured part to be pressed is formed,
The connecting portion that connects the lower arm portion and the upper arm portion is characterized in that the connecting portion extends from the lower arm portion toward the upper arm portion so as to be inclined rearward.

In the present invention configured as described above, since the connecting portion of the terminal extends from the lower arm portion toward the upper arm portion by tilting backward, at least one of the pressing arm portion of the lower arm portion and the pressured arm portion of the upper arm portion. However, the arm length can be increased, and both of them are more likely to flex elastically. As a result, the operation of the movable member becomes easy in both the case of the pressing arm portion and the case of the pressed arm portion. That is, as the arm length of the pressing arm increases, the pressing arm tends to bend, the reaction force to the pressing portion via the flat conductor decreases, the operation of the movable member becomes easier, and the pressured arm portion becomes easier to operate. As the arm length increases, the moment around the connecting portion with respect to the pressing arm portion based on the operating force from the movable member at the pressed portion increases to obtain a large pressing force, or the pressing force does not have to be increased too much. Therefore, when the pressing force is small, the operating force can be small, and therefore the operation of the movable member becomes easy. Further, with respect to the pressing arm portion of the upper arm portion, since the connecting portion is tilted as described above, the elastic displacement of the pressing arm portion is promoted.

In the present invention, the front contact arm portion and the rear contact arm portion extend from different positions in the front-rear direction in the direction of approaching each other, the front contact portion is at the rear end of the front contact arm, and the rear contact portion is at the front end of the rear contact arm portion. Can be provided.

In this case, the front contact portion and the rear contact portion are located close to each other in the front-rear direction.

In the present invention, the pressing arm portion of the upper arm portion is formed by an upward pressing arm portion and a downward pressing arm portion extending in parallel from the position of the connecting portion toward the rear, and the upward pressing arm portion is longer than the downward pressing arm portion. A rear pressing portion may be provided at the rear end of the upward pressing arm portion, and a front pressing portion may be provided at the rear end of the downward pressing arm portion.

By doing so, since the pressing is performed at the two positions of the front pressing portion and the rear pressing portion, the pressing range in the front-rear direction is widened, and the pressing is uniform as compared with the case of the concentrated pressing at one point.

In the present invention, the pressing arm portion of the upper arm portion is arranged in the front-rear direction so that the posterior pressing portion of the upward pressing arm portion is at the same position as the posterior contact portion formed on the posterior contacting arm portion of the lower arm portion, and the downward pressing arm portion. The front pressing portion of the portion can be positioned at the same position as the front contact portion of the front contact portion of the lower arm portion.

By doing so, since the two pressing portions press at the positions corresponding to the two contact portions, the flat conductor is strongly pinched and the contact pressure becomes large.

As described above, the connecting portion that connects the upper arm portion and the lower arm portion of the terminal is extended so as to tilt backward from the lower end portion toward the upper arm portion, so that the length of the connector in the front-rear direction is compared with the conventional one. It is possible to increase the length of at least one of the pressured arm of the upper arm located in front of the connecting portion and the anterior contacting arm of the lower arm located behind the connecting portion without increasing the size. In both cases, the elastic displacement becomes easy, and the operation of the movable member at the pressure-applied portion becomes easy.

It is a perspective view which shows the whole electric connector for a flat conductor which concerns on one Embodiment of this invention, and shows the state which the flat conductor is not inserted, and the movable member is in an open position. It is a perspective view of the state where the movable member is brought to the closed position after the flat conductor is inserted into the connector of FIG. It is a cross-sectional view at the terminal position of the connector of FIG. Indicates a state in which the movable member is in the closed position after the insertion of the flat conductor is completed.

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

1 and 2 are perspective views showing the entire electric connector for a flat conductor according to the present embodiment, FIG. 1 shows a state in which the flat conductor is not inserted and the movable member is in an open position, and FIG. 2 is a flat view. It shows the state in which the movable member is in the closed position after the insertion of the mold conductor is completed. Further, FIG. 3 is a cross-sectional view showing a vertical cross section at the terminal position in the terminal arrangement direction of the connector of FIG. 1, and FIG. 3A is a state in which the movable member is in the open position before inserting the flat conductor, (B). ) Indicates a state in which the movable member is in the open position after the flat conductor is inserted, and (C) indicates a state in which the movable member is in the closed position after the flat conductor is inserted.

The electric connector 1 for a flat conductor (hereinafter, simply referred to as “connector 1”) according to the present embodiment is arranged on a circuit board (not shown), and a connecting portion of a flat conductor F such as an FPC is formed. It is a connector that is inserted toward the front (right side in FIGS. 1 to 3) to electrically connect the flat conductor F and the circuit board. In FIGS. 1 to 3, the direction in which the flat conductor F is inserted / removed is shown as the front-rear direction X, the terminal arrangement direction (connector width direction) is shown as Y, and the height direction is shown as Z.

As seen in FIG. 1, the connector 1 has a substantially rectangular outer shape and is made of an electrically insulating material, for example, a housing 10 made of synthetic resin and a metal housing 10 which is held in the housing 10 at equal intervals in the connector width direction Y. A plurality of terminals 20, a movable member 30 made of an electrically insulating material rotatably supported by the housing 10 and the plurality of terminals 20, for example, made of synthetic resin, and both ends of the housing 10 in the terminal arrangement direction Y. It has a metal plate fixing bracket 40 held in the housing 10.

Further, in the case of the present embodiment, the flat conductors F shown in FIGS. 1 to 3 are in the terminal arrangement direction Y (horizontal direction in FIGS. 1 and 2 and perpendicular to the paper surface in FIG. 3) when inserted into the connector 1. Corresponding circuit portions connected to the terminals 20 are formed on the lower surface at positions corresponding to the plurality of terminals 20 in the direction).

As can be seen in FIGS. 1 and 2, the housing 10 has a bottom wall 11 covering the entire area of the housing 10 in the front-rear direction X, and an upper wall 12 located above the bottom wall 11 and located in the middle region in the front-rear direction. And, in the terminal arrangement direction Y (the direction corresponding to the width direction of the flat conductor, the left-right direction in FIGS. 1 and 2, and the direction perpendicular to the paper surface in FIG. 3), up and down from the bottom wall 11 at both end positions of the housing 10. It is provided with a side wall 13 (not shown in FIG. 2) extending upward in the direction Z. The housing 10 is formed with terminal grooves 14 for holding the terminals 20 extending back and forth at equal intervals in the terminal arrangement direction Y of the housing 10. The housing 10 forms an open space cut out by opening the rear portion upward in the terminal arrangement range.

As shown in FIG. 3, the terminal groove 14 extends in the front-rear direction X along the bottom wall 11 and the upper wall 12 of the housing 10, and is formed in a slit shape extending in a direction parallel to the paper surface. ing. The terminal groove 14 is formed with a holding hole portion 11A-1 for holding the rear held portion 24A of the terminal 20 described later by penetrating rearward through the rear wall portion 11A formed at the rear end position of the bottom wall 11. ing. Further, the bottom wall 11 is formed with a holding edge portion 11B having a thin front end thereof, so as to hold the hook-shaped front held portion 24B of the terminal 20 described later. Thus, the terminal groove 14 extends in the front-rear direction X over substantially the entire length of the connector 1 in the front-rear direction. Further, on the upper surface of the rear wall portion 11A, at both end positions in the connector width direction, the flat conductor F is locked to the locking convex piece F1 to prevent the flat conductor F from coming out to the rear. The protrusion 11C is provided.

As seen in FIGS. 1 and 2, the side wall 13 is formed with a slit-shaped fixing metal fitting holding groove 13B for holding the fixing metal fitting 40, which is opened rearward at a position on the rear side of the side wall 13. There is.

As can be seen in FIG. 3, the latter half of the housing 10 behind the upper wall 12 is open upward through the terminal arrangement range as described above because the upper wall 12 does not exist. An open space is formed, and the lower portion of the open space forms a receiving portion 15 for receiving the flat conductor F from the rear. In front of the receiving portion 15, a flat conductor insertion groove 16 for inserting a connecting portion to be a front portion of the flat conductor F is provided between the bottom wall 11 and the upper wall 12 in the front-rear direction X. It is formed to extend to the intermediate position of. Since the flat conductor insertion groove 16 is formed over the width of the flat conductor F (dimension in the terminal arrangement direction Y), in FIG. 3, a plurality of terminal grooves are formed in a direction perpendicular to the paper surface (terminal arrangement direction Y). It penetrates 14 and divides the terminal groove 14 into two groove portions in the vertical direction Z. On the other hand, in the front part of the housing 10, an open space opened upward and forward is formed in a range between both side walls 13, and this open space is movable between the open position and the closed position. A movable member moving space 17 that allows the movement of the member 30 is formed.

As seen in FIG. 3, the terminals 20 are made by, for example, punching while maintaining the flat surface of the metal plate, and are arranged in the housing 10 with the direction perpendicular to the plate surface as the terminal arrangement direction Y. .. The terminal 20 is inserted and attached to the terminal groove 14 of the housing 10 in the direction opposite to the insertion direction (extraction direction) of the flat conductor, that is, to the left in FIG.

As shown in FIG. 3, the terminal 20 is a lower portion of the housing 10 at the lower portion in the terminal groove 14 (the lower groove portion of the terminal groove 14 vertically divided by the flat conductor insertion groove 16). The arm-shaped lower arm portion 21 extending in the front-rear direction X along the bottom wall 11 and the upper portion in the terminal groove 14 (the groove portion located above the flat conductor F insertion groove) of the housing 10 It has an upper arm portion 22 extending in the front-rear direction X along the upper wall 12, and a connecting portion 23 connecting the lower arm portion 21 and the upper arm portion 22. The connecting portion 23 is formed in an arm shape that connects the lower arm portion 21 and the upper arm portion 22 at an intermediate position in the front-rear direction X, and extends at an angle as described later.

The lower arm portion 21 has a fixed arm portion 24 that is in contact with the upper surface of the bottom wall 11 of the housing 10 and is fixedly held by the bottom wall 11, and is flexible and extends from the fixed arm portion 24 at a position rearward from the connecting portion 23. The two contact arms are formed with a protruding front contact arm 25 and a rear contact arm 26 at different positions in the front-rear direction, and the front contact arm 25 is a connecting portion. The front contact portion 25A extends rearward from the position immediately behind the 23 so that the front contact portion 25A fits in the lower portion of the terminal groove 14, and the rear contact arm portion 26 extends forward from the position near the rear end of the fixed arm portion 24 and its front end thereof. The rear contact portion 26A is provided so as to fit in the lower portion of the terminal groove 14.

The front contact arm portion 25 and the rear contact arm portion 26 are housed in the lower portion of the terminal groove 14 as described above, but the front contact portion 25A and the rear contact portion 26A form a protrusion facing upward. It is located outside the terminal groove 14 and enters the flat conductor insertion groove 16. In the present embodiment, as seen in FIG. 3, the front contact arm portion 25 and the rear contact arm portion 26 are provided at substantially the same position, that is, at substantially the same height position in the vertical direction Z. Further, from the rear end portion of the fixed arm portion 24, a rear held portion 24A for being held by the holding hole portion 11A-1 formed in the housing 10 is formed so as to project rearward, and from the front end portion. A hook-shaped front held portion 24B that is bent downward and backward is provided. Further, the lower end edge of the front held portion 24B forms a connecting portion 24B-1 which is solder-connected to the circuit board.

The upper arm portion 22 has a pressing arm portion 27 in which a pressing portion for pressing the flat conductor F is formed at a position rearward from the connecting portion 23, and a pressure applied upward by the movable member 30 at a position in front of the connecting portion 23. The portion 28A has a pressure-bearing arm portion 28 formed in a concave shape. The connecting portion 23 that connects the lower arm portion 21 and the upper arm portion 22 extends rearwardly from the lower arm portion 21 toward the upper arm portion 22.

The pressing arm portion 27 of the upper arm portion 22 is formed by an upward pressing arm portion 27A and a downward pressing arm portion 27B extending in parallel toward the rear in the front-rear direction X from the position of the connecting portion 23, and the upward pressing arm portion 27A is downward. It is longer than the pressing arm portion 27B, and a rear pressing portion 27A-1 is provided at the rear end of the upward pressing arm portion 27A, and a front pressing portion 27B-1 is provided at the rear end of the downward pressing arm portion 27B.

The pressing arm 27 of the upper arm 22 is in the front-rear direction X, and the posterior pressing portion 27A-1 of the upward pressing arm 27A is located at the same position as the posterior contact portion 26A formed on the posterior contact arm 26 of the lower arm 21. , The front pressing portion 27B-1 of the downward pressing arm portion 27B is at the same position as the front contact portion 25A of the front contact arm portion 25 of the lower arm portion 21.

The movable member 30 functions as a pressurizing means for pressing the flat conductor F downward toward the front contact portion 25A and the rear contact portion 26A of the terminal 20. The movable member 30 has an open position that allows the flat conductor F to be inserted in a vertically extending posture as shown in FIGS. 3 (A) and 3 (B), and as shown in FIG. 3 (C). The flat conductor F can be rotated between the front contact portion 25A and the rear contact portion 26A of the terminal 20 in a posture extending in the front-rear direction to increase the contact pressure of the flat conductor F.

As is often seen in FIGS. 1 and 2, the movable member 30 is formed with a width extending over the arrangement range of the terminals 20 in the terminal arrangement direction Y. As shown in FIGS. 1 (A), 2 and 3 (A), (B) and (C), the movable member 30 is located at a position corresponding to the terminal 20 in the terminal arrangement direction Y. A slit-shaped groove portion 31 having a groove width slightly wider than the plate thickness dimension of the terminal 20 is formed in a substantially lower half portion at the open position. Therefore, as is often seen in FIG. 1, the substantially lower half portion of the movable member 30 is comb-shaped in the terminal arrangement range when viewed in the front-rear direction X. As shown in FIGS. 3A and 3B, the groove portion 31 allows the pressure-bearing arm portion 28 of the terminal 20 to enter from the front.

As shown in FIGS. 3A and 3B, the groove portion 31 is provided with a cam portion 32 in an island shape at a position closer to the lower end portion of the movable member 30 when in the open position. , The facing wall surfaces of the groove 31 are connected to each other by the cam portion 32. The cam portion 32 has a shaft portion 32A having a circular cross-sectional shape and an arm-shaped supported portion 32B.

Further, the movable member 30 is formed with end shaft portions (not shown) protruding from both end faces extending at right angles to the terminal arrangement direction Y, and can be rotated and moved in the vertical direction Z by the housing 10. It is supported. The end shaft portion is formed so as to be located coaxially with the shaft portion 32A.

Further, as seen in FIG. 3B, the supported portion 32B of the movable member 30 in the closed position is supported by the upper edge of the lower arm portion 21 of the terminal 20 and receives an upward force. There is.

The fixing bracket 40 is made by punching out a metal plate, and as shown in FIG. 1, the fixing bracket 40 is inserted into the slit-shaped fixing bracket holding groove 13B of the housing 10 in a posture in which the plate surface is perpendicular to the terminal arrangement direction. It is installed from the rear. The connector 1 is fixed on the circuit board by soldering the lower edge portion of the fixing bracket 40 to the circuit board.

The connector 1 having such a configuration is assembled as follows.

First, the terminal 20 is press-fitted into the terminal groove 14 of the housing 10 from the front to the rear, that is, from the right to the left in the front-rear direction X in FIG. 3, and attached to the housing 10. As a result, as shown in FIG. 3A, the rear held portion 24A of the lower arm portion 21 is press-fitted into the holding hole portion 11A-1 formed in the bottom wall 11 of the housing 10 in the terminal 20. Further, by holding the front held portion 24B of the lower arm portion 21 with the holding edge portion 11B at the front end of the bottom wall 11 of the housing 10, the housing 10 is held in the terminal groove 14.

After the terminal 20 is incorporated into the housing 10 in this way, the end shaft portion of the movable member 30 is housed in the end shaft accommodating portion of the housing 10 while the movable member 30 is maintained in the upright posture in the open position. The movable member 30 is arranged in the movable member moving space 17. With this arrangement, the movable member 30 is brought to a position where the lower end of the movable member 30 abuts on the upper edge of the lower arm portion 21 of the terminal 20 as shown in FIGS. Is done. When the movable member 30 is assembled, the shaft portion 32A of the cam portion 32 of the movable member 30 comes into contact with the front end of the pressured arm portion 28 of the terminal 20, but the pressured arm portion 28 is elastically flexible and therefore is upward. It bends to allow the movable member 30 to be incorporated.

Next, the fixing bracket 40 is press-fitted into the fixing bracket holding groove 13B of the housing 10 from the rear and attached, and the assembly of the connector 1 is completed.

Hereinafter, the connection operation between the connector 1 and the flat conductor F will be described with reference to FIG. First, as shown in FIG. 3A, the movable member 30 is brought to the open position in the upright posture. Next, the flat conductor F is inserted into the receiving portion 15 of the housing 10 from the rear to the front (from left to right in FIG. 3A). As shown in FIG. 3B, the flat conductor F is inserted to a normal position where the front end surface of the flat conductor F abuts on the inner wall surface of the flat conductor insertion groove 16. In the present embodiment, by positioning the movable member 30 in the open position, the flat conductor F can be easily inserted under zero insertion force or low insertion force.

Next, the movable member 30 in the open position is rotated to bring it to the closed position shown in FIG. 3 (C). In the closed position, the movable member 30 receives the reaction force from the lower arm portion 21 and receives the reaction force upward by pressing the supported portion 32B against the upper edge of the lower arm portion 21 of the terminal 20 in a vertically elongated posture. The unit 32 moves upward. Due to this upward movement, the cam portion 32 is elastically displaced so that its shaft portion 32A flexes upward in the pressurized arm portion 28A of the pressurized arm portion 28 of the upper arm portion 22 of the terminal 20. .. When the pressured arm portion 28 is elastically displaced upward, the pressing arm portion 27 in front of the connecting portion 23 is elastically displaced downward with the upper end position of the connecting portion 23 as a fulcrum. That is, both the upward pressing arm portion 27A and the downward pressing arm portion 27B are flexed downward and elastically displaced, and the rear pressing portion 27A-1 and the front pressing portion 27B-1 connect the flat conductor F to the front contact portion 25A and the rear of the terminal 20. Press downward toward the contact portion 26A. Therefore, as seen in FIG. 3C, the front contact portion 25A and the rear contact portion 26A are pressed downward by the flat conductor F and displaced, and as a result, formed on the lower surface of the flat conductor F. The contact pressure between the corresponding circuit portion and the front contact portion 25A and the rear contact portion 26A is increased. As described above, by bringing the movable member 30 to the closed position, the connection between the connector 1 and the flat conductor F is completed.

In the present embodiment, since the front contact portion 25A and the rear contact portion 26A are located at intervals close to each other in the front-rear direction X, the front contact portion 25A and the rear contact portion 26A are in contact with the flat conductor F. Can be made substantially equal, the contact reliability can be improved, and the terminal 20 presses the flat conductor F in the range of the above interval in the front-rear direction X, so that the pressing range is widened by the amount of the above interval. , The contact between the flat conductor F and the terminal 20 is stable.

As described above, in the present embodiment, in the connecting portion 23 that connects the lower arm portion 21 and the upper arm portion 22 of the terminal 20, the connecting portion 23 extends backward from the lower arm portion 21 toward the upper arm portion 22. Therefore, at least one of the pressing arm portion 27 of the lower arm portion 21 and the pressured arm portion 28 of the upper arm portion 22 can increase the arm length, and both of them are more likely to flex elastically. As a result, the operation of the movable member 30 becomes easy in both the case of the pressing arm portion 27 and the case of the pressed arm portion 28. That is, as the arm length of the pressing arm portion 27 increases, the pressing arm portion 27 tends to bend and the reaction force to the pressing portions 29A-1 and 29B-1 via the flat conductor decreases, and the movable member 30 is operated. When the arm length of the pressurized arm 28 becomes large, the moment around the connecting portion 23 with respect to the pressing arm 28 based on the operating force from the movable member in the compressed arm 28A becomes large, and a large pressing force is applied. It can be obtained or the pressing force does not have to be increased so much, and when the pressing force is small, the operating force can be small, and therefore the operation of the movable member 30 becomes easy. Further, with respect to the pressing arm portion 27 of the upper arm portion 22, since the connecting portion is tilted as described above, the elastic displacement of the pressing arm portion 27 is promoted.

The present invention is not limited to the forms illustrated and described, and various modifications are possible. For example, the front contact arm 25 and the rear contact arm 26 extending from the lower arm 21 shown in FIG. 3A need to extend in opposite directions at two different positions in the front-rear direction. It may extend in the same direction without.

Further, as seen in FIG. 3A, the pressing arm portion 27 of the upper arm portion 22 is formed as one arm portion without having two arms as the parallel upward pressing arm portion 27A and the downward pressing arm portion 27B. You may.

1 Connector 24 Fixed arm 10 Housing 25 Front contact arm 11 Bottom wall 25A Front contact 12 Upper wall 26 Rear contact 13 Receiving part 26A Rear contact 20 Terminal 27 Pressing arm 21 Lower arm 27A-1, 27B- 1 Pressing part 22 Upper arm part 28 Pressured arm part 23 Connecting part F Flat conductor

Claims (2)

A housing formed by opening the receiving portion formed in the front end region of the flat conductor toward the rear between the bottom wall and the upper wall, and a metal plate forming a flat surface, on the flat surface. It has a plurality of terminals arranged and held by the housing in the perpendicular direction, and the terminals are located on the bottom wall side of the housing and extend in the front-rear direction along the bottom wall, and on the upper wall side of the housing. It has an upper arm portion extending in the front-rear direction along the upper wall and a connecting portion connecting the lower arm portion and the upper arm portion at an intermediate position in the front-rear direction, and the lower arm portion connects a flat conductor. The upper arm portion has a contact portion for contacting the portion, and the upper arm portion has a pressing portion rearward from the connecting portion that displaces the flat conductor so as to press the flat conductor toward the lower arm portion. A flat conductor having a pressed portion that engages with a movable member that causes an upward displacement with respect to the upper arm portion in front of the connecting portion to bring about a downward displacement and is pressed upward. For electrical connectors
In the bottom wall, the rear end portion of the bottom wall projects rearward with respect to the upper wall.
The lower arm portion has a fixed arm portion that is in contact with the upper surface of the bottom wall and is fixedly held by the bottom wall, and two flexible contact arm portions that extend from the fixed arm portion at a position rearward from the connecting portion.
The two contact arm portions, and a front contact arm portion and the rear contact arm portion extending toward each other from different positions in the longitudinal direction, the front contact portion at the rear end of the front contact arm portion, the rear contact arm A rear contact part is provided at the front end of the part,
The rear contact arm portion extends from the rear portion of the lower arm portion toward the front, and a part in the front-rear direction is located in the range of the rear end portion of the bottom wall.
The upper arm portion has a pressing arm portion formed with a pressing portion for pressing the flat conductor against the front contact portion and the rear contact portion at a position rearward from the connecting portion, and a movable member upward at a position forward from the connecting portion. It has a pressured arm portion on which a pressured portion to be pressed is formed , and has a pressured arm portion.
The pressing arm portion has an upward pressing arm portion and a downward pressing arm portion extending in parallel from the position of the connecting portion toward the rear, and the upward pressing arm portion is formed longer than the downward pressing arm portion, and the upward pressing arm portion is formed. A rear pressing portion is provided at the rear end of the portion, and a front pressing portion is provided at the rear end of the downward pressing arm portion.
The connecting portion is an electric connector for a flat conductor characterized in that it extends from the lower arm portion toward the upper arm portion so as to be inclined rearward. The pressing arm of the upper arm is in the anterior-posterior direction, the posterior pressing portion of the upward pressing arm is at the same position as the posterior contacting portion of the posterior contacting arm of the lower arm, and the anterior pressing portion of the downward pressing arm is the lower arm. The electric connector for a flat conductor according to claim 1, wherein the electric connector is located at the same position as the front contact portion of the front contact portion of the above.

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