CN103474801A - Flat cable connector - Google Patents

Abstract

The present invention provides a flat cable connector capable of avoiding poor contact of the lower contact beam when the flat cable is lifted upward, and also avoiding poor contact of the upper contact beam when a load is applied downward to the flat cable. In the flat cable connector (1), the contact (20) has a lower contact beam operating part (24) and an upper contact beam operating part (27), and the lower contact beam operating part (24) contacts from the lower side. The beam (23) is extended and driven by the rotation operation of the actuator (40), so that the lower contact point (23a) of the lower contact beam (23) is displaced upwards to apply the flattening effect caused by the lower contact beam (23). The contact pressure of the cable (70), the lower contact beam action part (24) is extended from the upper contact beam (26), and the upper contact beam (26) is moved forward by the rotation operation of the actuator (40) And the upper contact (26a) is displaced downward, and the contact pressure to the flat cable (70) by the upper contact beam (26) is applied.

Description

Flat Cable Connector

technical field

The present invention relates to a flat cable connector (flat cable connector) for connecting flat cables such as a flexible flat cable (FFC) and a flexible circuit board (FPC).

Background technique

As a conventional flat cable connector of this type, for example, one shown in FIG. 9 is known (see Patent Document 1). Fig. 9 is a cross-sectional view of an example of a conventional flat cable connector.

The flat cable connector 100 shown in FIG. 9 includes an insulating housing 110 having a flat cable receiving opening 111 through which a flat cable 140 can be inserted and removed. The flat cable accommodation opening 111 extends from the front end face (left end face in FIG. 9 ) of the housing 110 toward the rear side. A plurality of contacts 120 are attached to the housing 110 along its width direction (direction perpendicular to the paper surface in FIG. 9 ). Each contact 120 has an upper contact beam 124 that contacts the upper surface of the flat cable 140 inserted into the flat cable receiving opening 111 and a lower contact beam 123 that contacts the lower surface of the flat cable 140 . Contact protrusions 124 a and 123 a are formed at respective tips of the upper contact beam 124 and the lower contact beam 123 . The contact 120 has a base 121 elongatedly extending from the front side toward the rear side. The base 121 is press-fitted and fixed to the housing 110 from the rear of the housing 110 . The lower contact beam 123 is provided at the upper end of the fulcrum portion 122 extending upward from a substantially central portion in the front-rear direction of the base portion 121 . The lower contact beam 123 extends elongatedly in the front-rear direction across the fulcrum portion 122 . The upper contact arm 124 rises from a portion of the lower contact beam 123 on the rear side of the fulcrum portion 122 , and extends forward so as to face the lower contact beam 123 .

In addition, the flat cable connector 100 includes an actuator 130 . The actuator 130 applies a contact pressure to the flat cable 140 by the upper contact beam 124 and the lower contact beam 123 by rotating the flat cable 140 when the flat cable 140 is inserted into the flat cable receiving opening 111 . Specifically, the actuator 130 is supported relative to the housing 110 to be rotatable by being turned from the turning operation start position to the rear side, ie, in the direction of arrow A in FIG. 9 , to reach the turning operation end position. In FIG. 9 , the state where the actuator 130 is at the end position of the rotation operation is shown.

Further, each contact 120 is provided with an operating portion 125 driven by a rotational operation of the actuator 130 . The action portion 125 is provided at the rear end portion of the lower contact beam 123 . When the actuator 130 rotates toward the rear side, the operating part 125 is pushed up by the driving part 131 of the actuator 130, and the upper contact beam 124 is displaced downward. As a result, the contact pressure on the flat cable 140 by the upper contact beam 124 and the lower contact beam 123 is applied.

Moreover, as another example of the conventional flat cable, what is shown, for example in FIG. 10 is known (refer patent document 2). Fig. 10 is a cross-sectional view of another example of a conventional flat cable connector.

The flat cable connector 200 shown in FIG. 10 includes an insulating housing 210 having a flat cable receiving opening 211 through which a flat cable 250 can be inserted and removed. The flat cable accommodation opening 211 extends from the front end surface (left end surface in FIG. 10 ) of the housing 210 toward the rear side. A plurality of contacts 220 are attached to the housing 210 along its width direction (direction perpendicular to the paper surface in FIG. 10 ). Each contact 220 has a base portion 221 press-fitted from the rear end of the housing 210 . From the upper end of the front edge of the base portion 221 , the connection portion 223 extends forward, and at the front end of the connection portion 223 , a rotation support portion 222 is provided. In addition, the lower contact arm 224 extends from a substantially central portion in the front-rear direction of the lower end edge of the connection portion 223 . The lower contact arm 224 extends downward from the connection portion 223 and further extends forward. The lower side contact arm 224 is in contact with the lower surface of the flat cable 250 inserted into the flat cable receiving opening 211 .

In addition, the flat cable connector 200 includes an actuator 230 . The actuator 230 applies a contact pressure to the flat cable 250 by the lower side contact beam 224 by a rotational operation when the flat cable 250 is inserted into the flat cable receiving opening 211 . Specifically, the actuator 230 is supported to be rotatable relative to the rotation support portion 222 to reach the rotation operation end position by being rotated from the rotation operation start position to the front side, ie, in the arrow B direction in FIG. 10 . In FIG. 10 , a state in which the actuator 230 is at the end position of the rotation operation is shown. If the actuator 230 is rotated to the front side from the rotation operation start position, the pressing part 231 provided on the actuator 230 presses the upper surface of the flat cable 250 . As a result, contact pressure on the flat cable 250 by the lower contact beam 224 is applied.

Furthermore, a pair of suppressing wings 240 (only one is shown) are provided at the front end and both ends in the width direction of the housing 210 . These restraining wings 240 are positioned so as to be close to or in contact with the upper surface of the flat cable 250 and restrict the upward movement of the flat cable 250 .

Moreover, what is shown, for example in FIG. 11 is known as still another example of the conventional flat cable (refer patent document 3). Fig. 11 is a cross-sectional view of yet another example of a conventional flat cable connector.

The flat cable connector 300 shown in FIG. 11 is mounted on a circuit board PCB, and includes an insulating housing 310 having a flat cable receiving opening 311 through which a flat cable 340 can be inserted and removed. The flat cable accommodation opening 311 extends from the front end surface (left end surface in FIG. 11 ) of the housing 310 toward the rear side. In the housing 310, a plurality of contacts 320 are mounted along the width direction thereof. Each contact 320 has a base 321 fixed to the housing 310 . From the vicinity of the lower end of the front edge of the base 321 , a press-fit portion 322 press-fitted and fixed to the housing 310 extends. Further, a contact beam 323 that contacts the upper surface of the flat cable 340 inserted into the flat cable accommodating opening 311 extends from an upper end of the press-fitting portion 322 substantially at the center in the front-rear direction. The contact beam 323 stands up from the upper end of the substantially central portion in the front-rear direction of the press-fit portion 322 and extends forward through a reverse S-shaped bent portion. At the front end of the contact beam 323, a contact point 323a that contacts the upper surface of the flat cable 340 is provided.

In addition, the flat cable connector 300 includes an actuator 330 . The actuator 330 is supported to be rotatable relative to the housing 310 in such a manner as to reach a turning operation end position by turning from the turning operation start position to the rear side. If the actuator 330 is rotated rearward from the rotation operation start position, the driving portion 331 provided to the actuator 330 pushes the contact beam 323 toward the front. As a result, the contact point 323a provided at the tip of the contact beam 323 is displaced downward, and the upper surface of the flat cable 340 is pressed, thereby applying a contact pressure to the flat cable 340 by the contact beam 323 .

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2004-158206;

Patent Document 2: Japanese Patent No. 3029985;

Patent Document 3: Japanese Unexamined Patent Publication No. 2008-123802.

Contents of the invention

However, in the flat cable connector 100 shown in FIG. 9 , the flat cable connector 200 shown in FIG. 10 , and the flat cable connector 300 shown in FIG. 11 , there are the following problems.

That is, in the case of the flat cable connector 100 shown in FIG. 9 , the operating portion 125 is locked by the driving portion 131 of the actuator 130 in a state where the actuator 130 is at the rotation operation end position. Therefore, when the inserted flat cable 140 is lifted upward as indicated by the arrow X in FIG. 9 , the lower contact beam 123 cannot follow the flat cable 140 . As a result, the contact pressure of the lower contact beam 123 to the flat cable 140 is lowered, so that poor contact of the lower contact beam 123 may occur.

In addition, in the case of the flat cable connector 200 shown in FIG. 10 , since the suppressing wings 240 are provided, when the flat cable 250 is lifted upward, the actuator 230 does not rotate and the flat cable 250 does not come off. However, as shown in FIG. 10 , when a load is applied downward indicated by an arrow Y with respect to the flat cable 250 bent upward, there is no member that receives the load acting on the flat cable 250 . Therefore, a load that tends to move downward also acts on the vicinity of the portion of the flat cable 250 that is in contact with the lower contact beam 224 . Here, in the flat cable connector 200 shown in FIG. 10 , assuming that there is an upper contact beam like the flat cable connector 100 shown in FIG. 9 , the flat cable 250 is intended to be separated from the upper contact beam. . Therefore, the contact pressure on the flat cable 250 by the upper side contact beam decreases, and poor contact may occur.

Furthermore, in the case of the flat cable connector 300 shown in FIG. 11 , the contact beam 323 is pushed forward by the rotation operation of the actuator 330 . Accordingly, the contact point 323a can be displaced downward to press the upper surface of the flat cable 340 . However, the flat cable connector 300 shown in FIG. 11 has only the contact beam 323 that pushes the upper surface of the flat cable 340 , and does not have the contact beam that pushes the lower surface of the flat cable 340 . Therefore, the technique of pushing the contact beam 323 forward by the rotational operation of the actuator 330 cannot be applied to a type of flat cable connector having contacts having upper and lower contacts.

Therefore, the present invention has been made in view of these problems, and its object is to provide a flat cable connector in which the contact has an upper contact beam having an upper contact that contacts the upper surface of the flat cable and a lower contact beam that contacts the upper surface of the flat cable. In the flat cable connector of the lower contact beam of the surface-contact lower contact, when the flat cable is lifted upward, contact failure of the lower contact beam can be avoided, and when a load is applied downward to the flat cable, it can also be avoided. Poor contact of side contact beam.

In order to achieve the above objects, the flat cable connector according to claim 1 of the present invention includes an insulating housing, a contact, and an actuator. The insulating housing has a pluggable flat cable extending from the front end toward the rear. The flat cable receiving opening of the cable, the contact is mounted on the housing, and has an upper contact beam and a lower contact beam having an upper surface in contact with the upper surface of the flat cable inserted into the flat cable receiving opening. a contact point, the lower contact beam has a lower contact point in contact with the lower surface of the above-mentioned flat cable, and the actuator is supported relative to the above-mentioned housing so as to be able to reach the end of the rotation operation by rotating from the rotation operation start position to the rear side When the above-mentioned flat cable is inserted into the above-mentioned flat cable accommodating opening, the contact pressure on the above-mentioned flat cable is applied through the rotating operation, and the above-mentioned flat cable connector is characterized in that the above-mentioned contact has a lower contact beam action part and an upper contact beam operating part, the lower contact beam operating part extends from the lower contact beam, is driven by the rotation operation of the actuator, and displaces the lower contact point of the lower contact beam upward to apply the above-mentioned The contact pressure on the flat cable is caused by the lower contact beam, the upper contact beam action part is extended from the upper contact beam, and the upper contact beam is moved forward by the rotation operation of the actuator and the upper contact beam is moved forward. The upper contact is displaced downward, and the contact pressure on the flat cable by the above-mentioned upper contact beam is applied.

In addition, the flat cable connector according to claim 2 in the present invention is characterized in that, in the flat cable connector according to claim 1, the contact includes a substrate portion fixed to the housing, and an upper connecting piece Extending from the upper edge of the above-mentioned base plate portion, having a width smaller than the width in the front-rear direction of the above-mentioned base plate portion, the above-mentioned upper side contact beam extends forward from the upper end of the upper side connecting piece, and the above-mentioned upper side contact beam operating portion is connected from the above-mentioned The upper side contacts the rear end of the beam, and the upper end of the upper connecting piece extends rearward.

Furthermore, the flat cable connector according to claim 3 of the present invention is characterized in that, in the flat cable connector according to claim 2 , the lower connecting piece extends from the front edge of the substrate portion and has a larger diameter than the substrate portion. The width of the upper and lower direction width of the part is smaller, the above-mentioned lower side contact beam extends forward from the front end of the lower side connecting piece, and the above-mentioned lower side contact beam action part is connected from the rear end of the above-mentioned lower side contact beam to the lower side connecting piece. The front end extends forward.

According to the flat cable connector according to the present invention, the contact has a lower contact beam operating portion that extends from the lower contact beam and is driven by a rotational operation of the actuator to make the lower contact The lower contact point of the beam is displaced upward to apply a contact pressure to the flat cable caused by the lower side contacting the beam. After the flat cable is inserted into the flat cable receiving opening, when the flat cable is lifted upward, the lower surface of the flat cable tends to separate from the lower contact of the lower contact beam. However, since the lower contact point of the lower contact beam is displaced upward by the actuator and the lower contact beam operating part, the lower contact point of the lower contact beam can follow the movement of the flat cable. Therefore, when the flat cable is lifted upward, the lower contact point of the lower contact beam can follow the flat cable, and contact failure of the lower contact beam can be avoided.

In addition, the contact has an upper contact beam operating portion extending from the upper contact beam, and the upper contact beam is moved forward and the upper contact point is displaced downward by the rotation operation of the actuator. The contact pressure on the flat cable caused by the upper contact beam is applied. After the flat cable is inserted into the flat cable receiving opening, when a load is applied downward to the flat cable, the upper surface of the flat cable tends to separate from the upper contact of the upper contact beam. However, since the upper contact point of the upper contact beam is displaced downward by the actuator and the upper contact beam operating part, the upper contact point of the upper contact beam can follow the movement of the flat cable. Therefore, when a load is applied downward to the flat cable, the upper contact point of the upper contact beam can follow the flat cable, and contact failure of the upper contact beam can be avoided.

Description of drawings

FIG. 1 is a front view of an embodiment of a flat cable connector according to the present invention.

FIG. 2 is a top view of the flat cable connector shown in FIG. 1 .

Fig. 3 is a right side view of the flat cable connector shown in Fig. 1 .

Fig. 4 is a cross-sectional view along line 4-4 in Fig. 1 .

Fig. 5 is a cross-sectional view along line 5-5 in Fig. 1 .

Fig. 6 is a cross-sectional view along line 6-6 in Fig. 1 .

7 is a diagram for explaining the action of the flat cable connector shown in FIG. 1 , (A) is a sectional view of the state where the actuator is at the start position of the rotation operation, and (B) is a sectional view of the state where the actuator is in the middle of the rotation. Figure, (C) is a sectional view of the state where the actuator is at the end position of the rotation operation.

8 is a diagram for explaining the action of the flat cable connector shown in FIG. 1 together with the flat cable, (A) is a cross-sectional view of a state where the actuator is at a rotational operation start position and the flat cable is inserted into the flat cable accommodating opening, (B) ) is a cross-sectional view of the state where the actuator is at the end position of the rotation operation, and (C) is a cross-sectional view when the flat cable is lifted upward or a load is applied downward to the flat cable when the actuator is at the end position of the rotation operation .

Fig. 9 is a cross-sectional view of an example of a conventional flat cable connector.

Fig. 10 is a cross-sectional view of another example of a conventional flat cable connector.

Fig. 11 is a cross-sectional view of yet another example of a conventional flat cable connector.

Detailed ways

Hereinafter, embodiments of the flat cable connector according to the present invention will be described with reference to the drawings.

The flat cable connector 1 shown in FIG. 1 includes a housing 10 , a plurality of first contacts 20 and second contacts 30 , an actuator 40 , and a pair of left solder lugs 50 and right solder lugs 60 .

Here, the housing 10 is formed into a substantially rectangular shape extending in the width direction (left-right direction in FIG. 1 ) and front-rear direction (up-down direction in FIG. 2 ), and is integrally formed by molding an insulating synthetic resin. The housing 10 is provided with a flat cable accommodating opening 11 through which the flat cable 70 (see FIGS. 8(A), (B), and (C) ) can be inserted and removed. The flat cable receiving opening 11 extends rearward along the width direction of the housing 10 from the front end surface (the lower end surface in FIG. 2 , the left end surface in FIGS. 4 and 5 ) of the housing 10 . In the present embodiment, the flat cable 70 is formed of a flexible circuit board (FPC). The flat cable 70 is inserted in the flat cable insertion direction (front-back direction) with respect to the flat cable accommodation opening 11, and is pulled out in the opposite direction.

In addition, a plurality of first contacts 20 and second contacts 30 are alternately attached in a row along the width direction of the housing 10 .

As shown in FIG. 4 , each first contact 20 includes a substrate portion 21 , a lower contact beam 23 , an upper contact beam 26 , a lower contact beam operating unit 24 , and an upper contact beam operating unit 27 . Each first contact 20 is formed by punching a metal plate.

Here, the substrate portion 21 is formed in a substantially rectangular flat plate shape, and is press-fitted and fixed to the case 10 from the rear of the case 10 . A board connection portion 21 a connected to a circuit board (not shown) by solder or the like is provided at a lower end portion of the board portion 21 . The lower contact beam 23 extends forward from the front end of the lower connection piece 22 extending from the substantially vertical center of the front edge of the base plate portion 21 and positioned below the flat cable accommodation opening 11 . The lower connecting piece 22 has a width considerably smaller than the vertical width of the base plate portion 21 . At the front end of the lower contact beam 23 , a lower contact point 23 a that contacts the lower surface of the flat cable 70 inserted into the flat cable receiving opening 11 is formed protruding upward. In addition, the upper contact beam 26 extends forward from the upper end of the upper connection piece 25 extending upward from the upper edge of the base plate portion 21 and is positioned above the flat cable accommodation opening 11 . The upper connection piece 25 has a width smaller than the front-back direction width of the base plate portion 21 . At the front end of the upper contact beam 26 , an upper contact 26 a that contacts the upper surface of the flat cable 70 inserted into the flat cable receiving opening 11 protrudes downward.

Further, the lower contact beam operating portion 24 extends forward from the rear end of the lower contact beam 23 and the front end of the lower connecting piece 22 . The lower contact beam operating part 24 is driven by the rotation operation of the actuator 40 and connected to the lower contact beam 23 to displace the lower contact point 23a of the lower contact beam 23 upward. As a result, contact pressure on the flat cable 70 by the lower contact beam 23 is applied. In addition, the upper contact beam operating portion 27 protrudes rearward from the rear end of the upper contact beam 26 and the upper end of the upper connecting piece 25 . The upper contact beam operating part 27 moves the upper contact beam 26 forward and displaces the upper contact point 26a downward by the rotation operation of the actuator 40 . As a result, contact pressure on the flat cable 70 by the upper contact beam 26 is applied.

In addition, as shown in FIG. 5 , each second contact 30 includes a base 31 , a lower contact beam 32 , an upper contact beam 33 , and a forward extension 34 , and is formed by punching a metal plate. The base portion 31 is formed in a substantially rectangular flat plate shape, and is press-fitted and fixed to the housing 10 from the front of the housing 10 . The lower contact beam 32 is positioned on the lower side of the flat cable accommodation opening 11 standing up from the front end of the connecting portion 31 a extending forward from the lower end of the front edge of the base portion 31 and further extending rearward. A substrate connection portion 31b that is connected to a circuit board (not shown) by solder or the like is provided at the lower end portion of the front end of the connection portion 31a. In addition, the upper side contact beam 33 rises from the vicinity of the rear end of the connecting portion 31 a and further extends forward to be positioned above the flat cable accommodation opening 11 . Further, the front extension portion 34 extends forward from the upper end portion of the front edge of the base portion 31 . Further, at the rear end of the lower contact beam 32 , a lower contact point 32 a that contacts the lower surface of the flat cable 70 inserted into the flat cable receiving opening 11 protrudes upward. In addition, an upper contact 33 a that contacts the upper surface of the flat cable 70 inserted into the flat cable accommodation opening 11 protrudes downward at the front end of the upper contact beam 33 . Further, after the flat cable 70 is inserted into the flat cable accommodating opening 11 , the rotating operation of the actuator 40 causes the driving portion 48 a to press the front end of the upper contact beam 33 from above, displacing the upper contact beam 33 downward. As a result, contact pressure on the flat cable 70 by the upper contact beam 33 is applied.

Further, the actuator 40 applies a contact pressure to the flat cable 70 by the upper contact beams 26 , 33 and the lower contact beams 23 , 32 by rotating the flat cable 70 when the flat cable 70 is inserted into the flat cable receiving opening 11 . As shown in FIG. 1 , the actuator 40 includes an actuator main body 41 extending in the width direction of the casing 10 and a pair of side wall parts 42 provided at both widthwise ends of the actuator main body 41 . The pair of side wall portions 42 are connected by a connection portion 43 extending in the width direction at front ends (lower ends in FIGS. 1 and 4 ) of these side wall portions 42 . Further, as shown in FIGS. 1 and 6 , a pair of through holes 44 through which the pair of left solder lugs 50 and right solder lugs 60 can pass are formed near both ends in the width direction of the connecting portion 43 . In addition, as shown in FIG. 6 , a rotation shaft portion 45 is provided in the through hole 44 of each actuator 40 . As shown in FIG. 6 , each rotation shaft portion 45 enters the notch 64 of the right solder lug 60 (the same goes for the left solder lug 50 ) which is press-fitted and fixed to the housing 10 . Thereby, the actuator 40 can be rotated in the arrow a direction from the rotation operation start position shown in FIG. 7(A) to the rotation operation end position shown in FIG. 7(C) . That is, the actuator 40 is supported to be rotatable relative to the housing 10 in such a manner as to reach a turning operation end position by turning from the turning operation start position to the rear side. Therefore, the flat cable connector 1 can be called a so-called backflip type connector. Here, as shown in FIG. 7(A) , the turning operation start position is a position where the actuator 40 stands up at an angle of 90° with respect to the horizontal direction. In addition, as shown in FIG. 7(C), the turning operation end position is a position where the actuator 40 is in the horizontal direction.

In addition, as shown in FIGS. 1 , 4 and 5 , a plurality of first through holes 46 through which the upper contact arms 26 of the first contacts 20 enter are formed in the coupling portion 43 of the actuator 40 . In addition, a plurality of second through-holes 48 into which the front extending portion 34 of the second contact 30 enters is formed in the same connecting portion 43 . A plurality of first through holes 46 and second through holes 48 are alternately formed along the width direction of the connecting portion 43 . Furthermore, as shown in FIG. 4 and FIG. 7(A), (B), and (C), a first drive portion 47 is provided in the first through hole 46 of the coupling portion 43 of the actuator 40 . The first driving part 47 drives the lower contact beam operating part 24 of the first contact member 20 by the rotation operation of the actuator 40, and the lower contact beam 23 and the lower contact point 23a integrated with the lower contact beam operating part 24 go upward. Azimuth displacement. Furthermore, as shown in FIG. 5 , another second drive portion 48 a is provided at the second through hole 48 of the coupling portion 43 of the actuator 40 . The second drive unit 48a pushes the tip of the upper contact beam 33 of the second contactor 30 from above by a rotational operation, and displaces the upper contact beam 33 downward.

Furthermore, the pair of side wall portions 42 of the actuator 40 are connected by a third driving portion 49 extending in the width direction at rear ends (upper ends in FIGS. 1 and 4 ) of these side wall portions 42 . As shown in FIGS. 7(A), (B) and (C), the third drive unit 49 pushes the upper side contact beam operating unit 27 forwardly indicated by the arrow b by rotating the actuator 40 . As a result, the upper contact beam 26 is moved forward as indicated by the arrow b, and the upper contact point 26a is displaced downward. As a result, contact pressure on the flat cable 70 by the upper contact beam 26 is applied. In addition, as shown in FIG. 4 and FIG. 7(A), (B), and (C), the third driving portion 49 is formed in a substantially flat plate shape having an inner surface 49b, and an inclined surface 49a is formed inside the distal end thereof. In addition, on the base end side of the third driving portion 49, a recessed portion 49c recessed from the inner surface 49b is formed. Detailed functions of the third drive unit 49 will be described later.

In addition, a pair of left solder lugs 50 and right solder lugs 60 are press-fitted to both ends of the case 10 in the width direction, and the case 10 is fixed to a circuit board (not shown) by soldering. Since the left solder ear 50 and the right solder ear 60 have the same shape and structure, only the shape and structure of the right solder ear 60 will be described.

As shown in FIG. 6 , the right solder lug 60 includes a substantially rectangular flat plate-shaped base portion 61 , a press-fit portion 62 , and an upwardly extending portion 63 , and is formed by punching a metal plate. The lower edge of the base 61 is fixed on the circuit board by soldering. The press-fit portion 62 extends rearward from the rear end edge of the base portion 61 , and is press-fitted and fixed to the housing 10 from the front of the housing 10 . In addition, the upward extension portion 63 extends upward from the upper edge of the base portion 61 , and a notch 64 into which the rotation shaft portion 45 enters is formed at the rear edge.

Next, the action of the flat cable connector 1 will be described with reference to FIGS. 7(A), (B), and (C) and FIGS. 8(A), (B), and (C).

First, as shown in FIG. 7(A), when the actuator 40 is at the turning operation start position, the actuator 40 is at a position standing at an angle of approximately 90° with respect to the horizontal direction. In this state, as shown in FIG. 8(A), the flat cable 70 is inserted into the flat cable accommodating opening 11 from the front side. At this time, no contact pressure is applied to the flat cable 70 by the lower contact beam 23 and the upper contact beam 26 of the first contact 20 and the lower contact beam 32 and the upper contact beam 33 of the second contact 30 .

Next, as shown in FIG. 7(B), the actuator 40 is rotated in the direction of the arrow a toward the rear side. Then, the first driving part 47 of the actuator 40 drives the lower side contact beam operation part 24 of the first contact member 20 upward indicated by the arrow c, and the lower contact point 23a of the lower contact beam 23 moves upward indicated by the arrow d. displacement. As a result, contact pressure against the flat cable 70 by the lower contact beam 22 of the first contact 20 is applied. At the same time, although not shown, the second drive unit 48a of the actuator 40 presses the tip end of the upper contact beam 33 of the second contact 30 from above to displace the upper contact beam 33 downward. . As a result, contact pressure against the flat cable 70 by the upper contact beam 33 of the second contact 30 is applied.

Furthermore, as shown in FIG. 7(B), the inclined surface 49a of the third driving portion 49 of the actuator 40 pushes the upper contact beam operating portion 27 of the first contact 20 forwardly indicated by the arrow b.

Then, as shown in FIG. 7(C), the actuator 40 is rotated in the direction of arrow a toward the rear side, and the actuator 40 reaches the rotation operation end position. Then, the first drive unit 47 of the actuator 40 drives the lower contact beam operating unit 24 of the first contactor 20 upward, displacing the lower contact point 23a of the lower contact beam 23 upward as indicated by the arrow d. This increases the contact pressure on the flat cable 70 by the lower contact beam 22 of the first contact 20 . In addition, at the same time, although not shown, the second drive unit 48a of the actuator 40 further presses the top end of the upper contact beam 33 of the second contact 30 from above, so that the upper contact beam 33 is directed further. Lower displacement. This increases the contact pressure on the flat cable 70 by the upper contact beam 33 of the second contact 30 .

In addition, as shown in FIG. 7(C), the concave portion 49c of the third driving portion 49 of the actuator 40 pushes the upper side contact beam operating portion 27 of the first contact 20 further forward indicated by the arrow b, The upper contact point 26a is displaced downward as indicated by the arrow e. As a result, contact pressure on the flat cable 70 by the upper contact beam 26 is applied. In FIG. 8(B), there is shown a state where the flat cable 70 is inserted into the flat cable accommodating opening 11 and a state where the actuator 40 is at the rotation operation end position.

Therefore, when the rotation operation of the actuator 40 is completed, the lower contact point 23a of the first contact 20 is displaced upward, and the upper contact point 26a is displaced downward, and contacts the upper and lower surfaces of the flat cable 70 respectively in this state. Therefore, the lower contact 23 a and the upper contact 26 a of the first contact 20 are reliably in contact with the flat cable 70 .

Here, as shown in FIG. 8(C), for some reason, the flat cable 70 sometimes rises upward as indicated by the arrow f. In this case, the lower surface of the flat cable 70 tends to be separated from the lower contact point 23 a of the lower contact beam 23 of the first contact 20 . However, the lower contact point 23 a of the lower contact beam 23 is displaced upward by the actuator 40 and the lower contact beam operating part 24 . Therefore, the lower contact point 23 a of the lower contact beam 23 can follow the movement of the flat cable 70 . Therefore, when the flat cable 70 is lifted upward, the lower contact point 23a of the lower contact beam 23 is configured to follow the flat cable 70, so that poor contact of the lower contact beam 23 can be avoided.

On the other hand, as shown in FIG. 8(C), for some reason, a load may be applied downwardly indicated by the arrow g to the flat cable 70 . In this case, the upper surface of the flat cable 70 tends to be separated from the upper contact point 26 a of the upper contact beam 26 of the first contact 20 . However, the upper contact point 26 a of the upper contact beam 26 is displaced downward by the actuator 40 and the upper contact beam operating part 27 . Therefore, the upper contact point 26 a of the upper side contact beam 26 can follow the movement of the flat cable 70 . Therefore, when a load is applied downward to the flat cable 70 , the upper contact point 26 a of the upper contact beam 26 is configured to follow the flat cable 70 , and contact failure of the upper contact beam 26 can be avoided.

Further, the lower contact beam 23 of the first contact 20 extends forward from the front end of the lower connecting piece 22 extending from the front edge of the base plate portion 21 and having a width wider than the vertical direction width of the base plate portion 21 . small width. Further, the lower contact beam operating portion 24 extends forward from the rear end of the lower contact beam 23 and the front end of the lower connecting piece 22 . Therefore, since both the lower contact beam 23 and the lower contact beam operating part 24 extend from the narrow lower connecting piece 22, the rotation operation of the actuator 40 makes the lower contact beam operating part 24 and the lower contact beam 23 Can be easily deformed.

In addition, the upper contact beam 26 of the first contact 20 extends forward from the upper end of the upper connecting piece 25 extending from the upper edge of the base plate portion 21 and having a width wider than the front-rear direction width of the base plate portion 21 . small width. Therefore, when the third driving portion 49 of the actuator 40 pushes the upper contact beam operating portion 27 forward as indicated by the arrow b, the narrow upper connecting piece 25 is easily deformed with a small force. Thereby, the upper contact beam 26 can be easily moved forward with a small force. In addition, the upper contact beam operating portion 27 extends rearward from the rear end of the upper contact beam 26 and the upper end of the upper connecting piece 25 . Therefore, the upper side contact beam operation part 27 can be provided with a simple shape and structure.

As mentioned above, although embodiment of this invention was described, this invention is not limited to this, Various changes and improvements are possible.

For example, the flat cable 70 is not limited to FPC, and may be other flat cables such as FFC.

Also, the upper contact beam 26 does not necessarily extend forward from the upper end of the upper connecting piece 25 extending from the upper edge of the base plate 21 and having a width smaller than the front-rear width of the base plate 21 . In addition, the upper contact beam operating part 27 does not necessarily extend rearward from the rear end of the upper contact beam 26 and from the upper end of the upper connecting piece 25 . The upper contact beam operating part 27 only needs to extend from the upper contact beam 26 .

Moreover, the lower contact beam 23 of the first contact 20 does not necessarily extend forward from the front end of the lower connecting piece 22 , and the lower connecting piece 22 extends from the front edge of the base plate portion 21 and has a width wider than the base plate portion 21 in the vertical direction. smaller width. In addition, the lower contact beam operating portion 24 does not necessarily extend forward from the rear end of the lower contact beam 23 and the front end of the lower connecting piece 22 . The lower contact beam operating part 24 only needs to extend from the lower contact beam 23 .

Symbol Description

1: Flat cable connector

10: shell

11: Flat cable accommodation opening

20: 1st contact piece (contact piece)

21: Substrate part

22: Lower connecting piece

23: Lower side contact beam

23a: Lower contact

24: Lower side contact beam action part

25: Upper connecting piece

26: upper side contact beam

26a: Upper contact

27: Upper side contact beam action part

30: The second contact (contact)

32: Lower side contact beam

33: upper contact beam

40: Actuator

70: Flat cable connector

Claims (3)

1. A flat cable connector having: an insulating shell, which has a flat cable receiving opening extending from the front face toward the rear and capable of plugging and unplugging the flat cable; The contact is mounted on the case and has an upper contact beam and a lower contact beam, the upper contact beam has an upper contact point in contact with the upper surface of the flat cable inserted into the flat cable receiving opening, the the lower side contact beam has a lower contact point in contact with the lower surface of the flat cable; and an actuator supported to be rotatable relative to the housing in such a manner as to reach a rotational operation end position by being rotated from a rotational operation start position to the rear side, when the flat cable is inserted into the flat cable accommodating opening , by applying a contact pressure on the flat cable through a turning operation, The flat cable connector is characterized in that the contact has a lower contact beam operating part and an upper contact beam operating part, and the lower contact beam operating part extends from the lower contact beam and passes through the actuator. is driven by the rotating operation of the actuator, and the lower contact point of the lower contact beam is displaced upward to apply a contact pressure on the flat cable caused by the lower contact beam, and the upper contact beam action part is moved from The upper contact beam is extended, the upper contact beam is moved forward and the upper contact point is displaced downward by the rotation operation of the actuator, and the force caused by the upper contact beam is applied to the Contact pressure for flat cables. 2. The flat cable connector according to claim 1, wherein: The contact has a substrate portion fixed to the case, The upper connecting piece extends from the upper edge of the base plate portion and has a width smaller than the front-rear direction width of the base plate portion, the upper contact beam extends forward from the upper end of the upper connecting piece, and the The upper contact beam operating portion extends rearward from the rear end of the upper contact beam and the upper end of the upper connecting piece. 3. The flat cable connector according to claim 2, wherein the lower connecting piece extends from the front edge of the substrate portion and has a width smaller than the vertical width of the substrate portion, and the lower connecting piece The side contact beam extends forward from the front end of the lower connecting piece, and the lower contact beam operating portion extends forward from the rear end of the lower contact beam and the front end of the lower connecting piece.

Images