KR101040773B1 - Connector - Google Patents

Abstract

Provides a connector that is compact and locks when the actuator reaches the side opposite to the escape direction of the connection object, and the actuator can be molded with high strength and high precision by resin even when the actuator is thin and has a narrow pitch. do.

With respect to the cam preventing part of the actuator which is fixedly fixed to the fixing piece 51 and engaged with the actuator 70 positioned in the unlocked position, and protruded from the movable piece 52 and positioned in the locked position. It is provided in the actuator of the engagement projection 60 to engage, and the suction recess 72 which the cross section of a movable piece fits in when an actuator is located in an unlocked position is provided.

Connector, Actuator

Description

Connector {Connector}

The present invention relates to a connector for connecting a thin plate-like connection object such as FPC or FFC.

Fig. 14 is a conventional example of a connector of the type in which a thin plate-shaped connection object (FPC, FFC, etc.) can be connected, and the contact is connected to the connection object when the actuator reaches the side opposite to the escape direction of the connection object.

The connector is provided with an insulator capable of inserting and removing a connection object, a plurality of metal contacts fixed side by side to the insulator, and an actuator which is a plate-like resin member rotatably supported by the insulator. The contact has a fixed piece that is substantially parallel to the direction of insertion of the connection object, and a movable piece that is capable of swinging with respect to the fixed piece in the center of the intermediate piece, and between the fixed piece and one end of the movable piece (left end in FIG. 14). Can be inserted and removed.

On the other end (right end in FIG. 14) side of a movable piece and a fixed piece, the engaging protrusion and the fall prevention protrusion are respectively protruded. Moreover, the cam part located between the fixed piece and the other end of the movable piece is formed in the edge part of an actuator, and the some through-hole is formed in parallel with the contact direction in the vicinity of the cam part of an actuator.

As shown in Fig. 14 (a), when the actuator is positioned at an unlock position approximately perpendicular to the longitudinal direction of the insulator, the other end of the movable piece of each contact penetrates the corresponding through hole of the actuator, respectively. The cam is further away from the movable piece.

On the other hand, as shown in Fig. 14 (b), when the actuator is inserted between the fixed piece and one end of the movable piece, the actuator is rotated to the lock position reaching the opposite side to the escape direction of the connected object. Since the cam portion presses the end on the other side of the movable piece to the stationary piece, one end of the movable piece approaches the stationary piece and comes into contact with the connection object. In addition, since the engaging projection of the movable piece and the release preventing projection of the fixed piece engage with the through hole, respectively, and engage with the cam portion, the cam portion is prevented from escaping in the right direction of FIG. 14 between the fixed piece and the movable piece.

In recent years, actuators used as components have to be thinned because low magnification (less than 1 mm) and high density are required for this type of connector. In addition, the cam portion is approximately axially rotated between the unlocking position and the locking position between the stationary piece and the movable piece, and the engaging protrusion for forming the contact portion to prevent the cam portion from falling off in the insertion direction is movable, thus actuating the actuator. The through hole which penetrates a piece is formed.

Therefore, as the width of the pitch of each contact (the distance between neighboring contacts) becomes narrower, if the through hole is formed in the actuator with a narrower pitch, the mechanical strength at the end of the through hole side of the actuator becomes extremely weak, so that it is not bent or twisted. This causes the actuator to become unable to reliably press the end of the movable piece when the actuator rotates to the locked position.

In addition, when molding an actuator using a metal shaping | molding die, the resin material used as a raw material must flow around the part corresponding to the through-hole of a shaping | molding die, and must flow to an adjacent partition (wall between neighboring through-holes). . However, since the through-hole is a factor that increases the resin flow due to thinning and molding of an actuator corresponding to a narrow pitch, if the flow resistance is increased due to the narrowed pitch, there is a possibility that molding defects such as shot may occur.

In addition, the cam portion that transmits the operating force to the movable piece made of resin due to the low magnification of the connector tends to be thinner (Fig. 14 (a) up and down direction) and lower (Fig. 14 (b) up and down direction) and penetrates the actuator. Since the ball is formed, the cam portion is extremely small, weak in strength and poor in formability.

Moreover, in order to prevent the cam part from falling in the locked position, the unlocked position, and the rotation operation position, the engaging projection and the release preventing projection are formed at approximately the same position with respect to the insertion direction of the contact object. On one side thereof, the actuator has an angle of the unlocked position and then rides over the engaging projection inserted between the cam preventing projection and the engaging projection so that the cam preventing portion is assembled to the contact. It has a narrow shape (small lateral dimension in Fig. 14). Accordingly, when the rigidity of the actuator decreases and the cam portion is downsized with low magnification, the cam portion is prevented from being pulled out by the force in the disengaging direction of the cam portion during rotation operation from the unlock position of the actuator to the lock position or when the cam position is positioned at the lock position. There is a fear of getting over and falling off.

In particular, when the connector is multi-pole, the length of the actuator is increased, so the center portion is operated during operation, so that the actuator may be bent and fall off.

Further, on the surface of the cam portion (Fig. 14 (b), the lock holding surface is formed in contact with the upper surface (flat surface) of the fixing piece when the actuator moves to the locked position and the actuator is easy to hold in the locked position. Since the ball reaches the surface, the area of the lock holding surface (dimensions in the left and right directions in Fig. 14 (b)) is small, and therefore it is difficult to increase the holding force by the lock holding surface. There is a fear that the joining pressure of one end of the sheet movable piece and the connecting object may change.

In addition, when a large force (especially a momentary force during drop impact or excessive lock operation) is applied in the direction of falling into the actuator, the small cam part is reduced or the worst case is broken by the release preventing protrusion, thereby preventing the cam part from being pulled out. There is a risk of falling out behind the projections. The bad thing happens to the actuator operation | movement after that.

The object of the present invention is to be compact and lock the actuator when it reaches the exiting direction of the connection object, the actuator is thin, and even if the contact is a narrow pitch, the actuator is strong in strength and high in precision by resin. It is to provide a contactor that can be molded.

The connector of the present invention includes an insulator in which a thin plate-like connection object can be inserted and escaped, a fixing piece fixed to the insulator and substantially parallel to the insertion direction of the connection object, and a movable piece that can swing about the fixing piece about an intermediate portion. Rotatable relative to the insulator between a contact into which the connecting object is inserted between one end of the movable piece and the fixed piece, and a lock position that falls to the opposite side to the escape direction and an unlock position that rotates with respect to the lock position; An actuator having a cam portion which is located between the movable piece and the other end of the stationary piece and which connects one end of the movable piece to the connection object by pressing the other end of the movable piece away from the stationary piece when moving to the locked position. WHEREIN: The connector with which the said clamping piece was made to the other end side of the said cam part rather than the said cam part. It is installed so as to protrude, and is installed so as to be located in the one end layer than the fall prevention projection on the other end of the movable piece, and the release prevention projection that is engaged from the opposite side to the one end to the actuator located in the unlocked position For engaging with the cam portion of the actuator located at the lock position from the release preventing projection side, the engaging projection formed on the actuator, and the other end of the movable piece being fitted when the actuator is positioned at the unlocked position. A surface contact with a concave portion and a flat surface formed on an opposite side of the suction concave portion of the actuator and formed at a portion located at one end portion of the fixing piece or the insulator at the one end portion thereof when the lock position is located at the lock position. With flat lock retaining surface It characterized.

The pullout preventing recess, which is independent of the suction recess and the cam portion, to which the pullout preventing projection fits in the lock position on the opposite side of the suction recess of the actuator, may be formed.

The surface at one end side of the release preventing projection may be substantially orthogonal to the insertion direction of the connection object.

When the actuator is in the unlocked position, the actuator may have a flat unlocking holding surface which is in surface contact with a flat formed at a portion located at one end portion of the fixing piece or the insulator.

According to the present invention, since the engaging projection of the movable piece is positioned on one end side of the fixing piece rather than the falling prevention projection, the space (distance) in the longitudinal direction of the contact between the engaging projection and the falling prevention projection in the insertion direction of the connection object is reduced. Occurs. Therefore, by fitting the other end of the movable piece to the suction recess formed in place of the through hole in the actuator, it is possible to rotate the actuator to the unlocked position, and from the contact and insulator of the actuator located at the unlocked position. Can be prevented from falling off.

Also, because the actuator is formed as a suction concave without forming a through hole in the actuator, even if the connector is reduced in size or the contact is multiplied, the mechanical strength around the cam portion does not decrease, so even when the actuator is thin and the pitch between the contacts is good. The mechanical strength of the actuator (especially around the cam portion) does not significantly decrease.

In addition, the actuator having the suction hole instead of the through hole can reduce the flow resistance of the resin material when molding using the molding die, so that even if the thickness is narrow or the pitch is narrowed (even if the contact is multipolarized), the actuator has good precision. Molding is possible.

In addition, since there is no suction recess on the lock holding surface side of the actuator, the lock holding surface can be formed. Therefore, the actuator can be easily held in the locked position by the lock holding surface, whereby a change in pressing of the contact (moving piece) and the connection object can be prevented.

According to the structure as described in Claim 2, since the fall prevention recessed part is formed independently and independent of the suction recessed part to which a fall prevention protrusion fits, the intensity | strength of the vicinity of a fall prevention recessed part can be improved. Therefore, since the actuator improves the holding prevention effect holding force of the actuator by engaging the release preventing projection and the release preventing recess at the lock position, the actuator is not inadvertently pulled out by normal operation or pulled out by an unreasonable operation of the actuator.

In addition, since the relative movement in the direction of insertion and escape of the connection object to the contact (and the insulator) of the actuator can be regulated, the displacement of the movable piece is regulated to suppress the change in contact pressure or contact resistance caused by the movement of the actuator. It becomes possible.

Further, since the release preventing projections do not contact the cam portions, there is no fear that the cam portions are shaved by the release preventing projections.

In addition, the fall prevention recesses to which the other end (mating protrusion) of the movable piece does not fit when the actuator is moved to the locked position are recesses independent of the suction recesses. It can be set separately without affecting the concave portion, and there is no need to make it wider in accordance with the suction concave portion.

According to the structure as described in Claim 3, the fall prevention function of an actuator by a fall prevention protrusion improves.

As in the invention described in claim 6, when the unlocking holding surface is formed on the actuator, the actuator is easily held in the unlocked position when the actuator moves to the unlocked position.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring an accompanying drawing. Incidentally, the directions before, after, left and right, and up and down in the following description are based on the directions of the arrows in the drawings.

The connector 10 of this embodiment is equipped with the insulator 20, the 1st contact 40, the 2nd contact 50, and the actuator 70 as a big component.

The insulator 20 is injection molded of an insulating and heat resistant synthetic resin material. FPC insertion grooves 21 extending to the center portion in the front-back direction of the insulator 20 are recessed in portions except the left and right ends of the front surface of the insulator 20. A total of 18 first contact insertion grooves 25 extending in a straight line toward the rear are formed side by side in the left and right directions at predetermined intervals on the portion of the upper surface of the insulator 20 except for the left and right ends. As shown in the figure, the upper half of the rear half of each of the first contact insertion grooves 25 communicates with the recess 22 for importing the actuator. (See Figure 4. Figure 8).

As shown in FIG. 8, FIG. 1, and FIG. 13, in the lower half of the rear part of the insulator 20, a total of 18 supporting recesses 26 communicating with the lower part of the first half of each first contact insertion groove 25 are provided. It is provided concave side by side in the left-right direction.

In addition, a second contact insertion groove 27 extending parallel to the first contact insertion groove 25 to the rear end of the insulator 20 is formed at predetermined intervals (see FIGS. 3 and 7).

The partition wall 24 which partitions both is formed between the adjacent 1st contact insertion groove 25 and the 2nd contact insertion groove 27. As shown in FIG.

The right and left sides of the first half of the insulator 20 pass through the insulator 20 in the vertical direction and have a rectangular through hole 29 formed in a plan view, and the left and right through holes 29 are inside the insulator 20. Is in communication with the FPC insertion groove (21). In the through-holes 29 on the left and right sides, an elastic hooking piece 30 is formed integrally with the FPC insertion groove 21 on the same plane and extends forward. An engaging ring 31 protruding inward is integrally formed at the front end of the piece 30. The left and right elastic engaging pieces 30 can be elastically deformed in directions away from each other at an initial position (the position in FIGS. 3 and 9) which is a position in the free state.

As shown in Fig. 5 and Fig. 9, in the portion located between the left and right through-holes 29 on the bottom surface of the insulator 20, a total of 17 die-out holes having a smaller rectangular shape than the through-holes 29 ( 33) is formed as a through hole. The mold release hole 33 reaches the lower end of the partition wall 24 partitioning between the second contact insertion groove 27 and the first contact insertion groove 25 located on the left side thereof, and the partition wall ( It communicates with the 1st contact insertion groove 25 and the 2nd contact insertion groove 27 located to the left and right of 24. As shown in FIG.

A total of 18 first contacts 40 and a total of 17 second contacts 50 show a thin sheet of copper alloy (eg, phosphor bronze, beryllium copper, titanium copper) or corson-based copper alloy with spring elasticity. It is molded by stamping in the form, and is plated with gold after forming a base on the surface with nickel plating.

As shown, the first contact 40 has a substantially H-shape as viewed from the side and a movable piece extending substantially forward and backward with a fixing piece 41 extending in the front and rear direction and a dimension shorter than the fixing piece 41. The piece 42 and the deformable connection part 43 which can deform | transform the fixed piece 41 and the intermediate part of a movable piece are provided. The front end of the fixing piece 41 is provided so that the hook-shaped catching part 44 protrudes, and the contact protrusion 45 and the protrusion preventing portion 46 are provided near the middle and rear ends of the upper surface of the fixing piece 41. Are respectively provided to protrude upwards. The front end of the movable piece 42 is located behind the front end of the stationary piece 41, and the contact protrusion 47 protrudes downward in this front end. It is located in the rear end of the movable piece 42 rather than the rear end of the fixed piece 41, and the engaging projection 48 is provided in this rear end so that it may protrude downward.

As shown, the second contact 50 is substantially H-shaped as viewed from the side, and the movable piece 51 which extends in the front and rear direction and extends substantially in the front and rear direction with a dimension shorter than the fixed piece 51. The deformation | transformation connection part 53 which can deform | transform the piece 52 and the fixed piece 51 and the intermediate part of the movable piece 52 is provided. Contact protrusions 54 are provided at the front end of the fixing piece 51 so as to protrude upwards, and the intermediate protrusions 55 and the anti-separation protrusions 56 are provided near the middle and rear ends of the fixing piece 51. Each is provided to protrude upwards. As shown, the front face of the fall prevention protrusion 56 has a flat surface that is substantially orthogonal to the front-back direction (insertion direction of the insulator 20 of the FPC 80).

In addition, a hook-shaped locking portion 57 protrudes in the vicinity of the rear end of the rear surface of the fixing piece 51, and on the left side of the portion where the intermediate protrusion 55 of the fixing piece 51 is formed, the right side of this portion. The side projections 58 of the front and rear lengths approximately the same as the mold release hole 33 are projected by making the recesses to the left side. (See FIG. 4, FIG. 9, etc.). The front end part of the movable piece 52 is located in the same position as the front end part of the stationary piece 51, and the contact protrusion part 59 is provided in this front end part so that it may protrude downward. The rear end of the movable piece 52 is located in front of the rear end of the fixed piece 51, and the engaging projection 60 is provided in the end part so that it may protrude below.

When each first contact 40 inserts each first contact 40 into the first contact insertion groove 25 from the front of the insulator 20, the first contact insertion corresponding to the lower surface of the fixing piece 41 is also inserted. The upper surface of the movable piece 42 contacts the bottom surface of the groove 25 and falls downwardly from the ceiling surface of the corresponding first contact insertion groove 25 so that the hook-shaped locking portion 44 is the first contact insertion groove 25. To the front edge of the bottom. In addition, since the rear end of the fixing piece 41 fits into the corresponding support recess 26, and each of the protrusion preventing projections 46 penetrates into the ceiling surface of the support recess 26, the hook-shaped hook is caught. The front and rear movement of the bottom portion of the first contact insertion groove 25 of the fixing piece 41 is restricted with respect to the portion 44 and the protrusion preventing projection 46.

On the other hand, each second contact 50 is inserted into each second contact insertion groove 27 from the rear of the insulator 20. 7, 10, and 12, when each second contact 50 is inserted into the second contact insertion groove 27, the lower surface of the fixing piece 51 is the corresponding second contact insertion groove 27 ), The upper surface of the movable piece 52 falls downward from the ceiling surface of the corresponding second contact insertion groove 27, and the hooking catching portion 57 of the second contact insertion groove 27 It fits into the back edge of the bottom. Moreover, as shown in FIG. 9, since the side protrusion 58 provided so that the left side surface of the fixing piece 51 protrudes may be fitted in the mold release hole 33 formed in the lower end part of the partition wall 24, The hooking portion 57 and the side projections 58 restrict movement before and after the bottom surface of the second contact insertion groove 27 of the fixing piece 51. Moreover, it is located in front of the contact protrusion part 45 and the contact protrusion part 47 of each 2nd contact 40. FIG.

The rotary actuator 70, which is a plate member extending in the left and right directions, is formed by injection molding a heat-resistant synthetic resin material using a metal mold. Rotating support shafts 71 extending in the left and right directions, respectively, and coaxial with each other, are provided at the lower ends of the left and right sides. In the vicinity of the lower end of the surface of the actuator 70 (the front surface in FIG. 1 and the upper surface in FIG. 2), a total of 35 suction recesses 72 are provided in a concave side by side in the left and right directions. The lower end portions excluding the left and right sides are formed with a cam portion 73 extending in the left and right directions.

In addition, on the rear surface of the actuator 70 (the surface which forms the rear surface in FIG. 1 and the lower surface in FIG. 2), there are a total of 17 fall prevention recesses 74 located in the same horizontal direction as each of the second contacts 50. It is provided concave. Moreover, it is set as the flat lock holding surface 75 which extends the lower end rotation support shaft 71 on the back surface side of the actuator 70 to the left-right direction, and the whole bottom surface of the actuator 70 is the flat unlocking holding surface 76. It is.

The actuator 70 places its lower end (except for the rotation support shaft 76) in the recess 22 for importing the actuator of the insulator 20, and the left and right rotation support shafts 71 for the left and right shafts. It is rotatably attached about the rotation support shaft 71 with respect to the insulator 20 by fitting rotatably in the recess 23 (refer FIG. 6).

When the rotation support shaft 71 is fitted to the bearing 23, the rotation support shaft 71 is supported in the bearing 23. The actuator 70 is disposed between an unlock position (shown in FIGS. 1 and 6-8) that is approximately orthogonal to the insulator 20, and an approximately horizontal lock position (positions shown in FIGS. 2, 12, and 13). Can rotate

As shown, when the actuator 70 is positioned in the unlocked position, the engagement protrusion 48 of the first contact 60 and the engagement protrusion 60 of the second contact 50 are formed of the actuator 70. It is fitted so as to be flowable in the corresponding suction concave portion 72, and the lock holding surface 75 is in contact with the front surface of the release preventing projection 56. On the other hand, when the actuator 70 is located in the locked position, the cam portion 73 of the actuator 70 is connected to the rear end of the movable piece 42 of the first contact 40 and the movable piece of the second contact 50 ( The rear end of the movable member 42 and the movable member 52 are pushed upward, and the movable member 42 and the movable member 52 swing while deforming the deformable connecting portions 43 and 53 while elastically deforming. Approach to the fixing structure (41, 51) side.

Moreover, the fall prevention protrusion 56 of each 2nd contact 50 is fitted in each fall prevention recessed part 72. As shown in FIG.

In order to mount the connector 10 having the above configuration on the upper surface of the initial engine (see FIGS. 1 and 2), the insulator 20 may be formed by a suction means (not shown in FIG. 1-1) located above the connector 10. The upper surface of which the mold release hole 33 is not formed is adsorbed, and the suction means is moved so that the hook-shaped locking portions 44 of the first contacts 40 and the hook-shaped hooks of the second contacts 50 are held. The portion 57 is placed on a circuit pattern (not shown in Fig. 1-1) coated with a predetermined amount of solder paste on the circuit board CB.

Thus, each solder face is heated and melted in a reflow furnace, and each hook-shaped engaging portion 44, 57 is soldered to the rotation pattern.

The flexible printed circuit (FPC) 80 as a connection object is an elastically deformable sheet-shaped mounting, the thickness of which is a distance between the contact protrusion 45 and the contact protrusion 47 of the first contact 40 in a free state. It is shorter than the distance between the contact protrusion 54 and the contact protrusion 59 of the second contact 50 in the free state. The FPC 80 is a laminated structure formed by adhering a plurality of thin film materials to each other, and is located between a total of 18 circuit patterns 81 and a neighboring circuit pattern 81 extending linearly along the extension direction of the FPC 80. Insulation covering both sides of the circuit pattern 82 of 17 in total, whose both ends retreat from the end of the circuit pattern 81, and portions except the both ends of the circuit pattern 81 and the circuit pattern 82; The cover layer 83 and one side (upper surface in the figure) provided at both ends in the longitudinal direction are integrated with both ends of the circuit patterns 81 and 82, and have a hard end reinforcing member 84 as compared with other portions. Doing. In addition, engagement recesses 85 are recessed at both edges of the end reinforcing member 84, respectively.

When the actuator 70 of the connector 10 integrated with the circuit board CB is located in the unlocked position shown in FIGS. 1 and 6-8, the rear end of the insulator 20 is located on the same plane (horizontal plane). The unlocking holding surface 76 is in surface contact with a total of 19 horizontal flat surfaces 28 (the bottom part of the actuator import recess 22 and the bottom part of the left and right import recess 23) formed in the In addition, since the lock holding surface 75 abuts on the front surface of each release preventing projection 56, the actuator 70 is held in the unlocked position.

In this state, from the front of the insulator 20, the FPC 80 moves backward until its rear end comes in contact with the protruding face 219 which is the rear end of the FPC insertion groove 21, and each first contact 40 Enters between the contact protrusion 45 and the contact protrusion 47 and between the contact protrusion 54 and the contact protrusion 59 of each second contact 50. Since the distance between the engaging surfaces 31 between the left and right elastic engaging pieces 30 in the free state is slightly shorter than the width of the end reinforcing member 84, the rear end of the end reinforcing member 84 is engaged with the engaging ring 31. When the front and rear positions, such as the front end reinforcing material 84, the left and right elastic engagement piece 30 is elastically deformed in a direction away from each other, the left and right engagement recesses 85 of the end reinforcing material 84 Reaches the front and rear positions such as the left and right engagement rings 31, the left and right elastic engagement pieces 30 return to the free state (initial position), and the left and right engagement rings 31 are engaged with the left and right engagement rings. It is engaged with the recessed part 85, respectively.

In this way, when the actuator 70 is rotated to the rear in the state where the FPC 80 is temporarily held in the FPC insertion groove 21 by the left and right elastic engagement pieces 30 (engagement rings 31), the actuator ( 70) rotates to the locked position shown in FIGS. 2, 12 and 13 after passing the position shown in FIGS. 10 and 11. At this time, a feeling of click can be obtained by the protrusion ring 79 formed between the unlocking holding surface 76 and the locking holding surface 75 and extending in the horizontal direction in contact with each flat surface (FIG. 8).

When the actuator 70 rotates from the unlocked position to the locked position, the front and rear positions of the left and right rotation supporting shafts 71 move back and forth with respect to the bearing 23 for the bearing. When the actuator 70 moves to the locked position, the engagement protrusion 48 of the first contact 40 and the engagement protrusion 60 of the second contact 50 are moved from the rear of the cam portion 73 of the actuator 70. (The engaging projections 48 and 60 are fitted into the suction recesses 72.) The anti-separation projections 56 of the respective second contacts 50 are fitted into the respective recess prevention recesses 74. Is fitted, and the actuator 70 is held in the locked position because the lock holding surfaces 75 are in surface contact with each of the flat surfaces 28. As a result, the actuator 70 rotates to the locked position so that the contact protrusions 47 of the movable pieces 42 contact each lower surface of the FPC 80 while the contact protrusions 45 are in contact with the lower surface of the FPC 80. The contact protrusions 59 of the respective movable pieces 52 are connected to the FPCs 80 in contact with the contact portions 81a formed at the ends of the 81s and the contact protrusions 54 are in contact with the lower surface of the FPC 80. Since it contacts the contact portion 82b formed at the end of the circuit pattern 82, the circuit board CB and the FPC 80 are electrically connected through each of the first contacts 40 and the second contacts 50. .

When the contact between the first contact 40 and the second contact 50 and the FPC 80 is desired to be released, the second half of the actuator 70 may be rotated up and down.

At this time, when the actuator 70 reaches the positions shown in FIGS. 10 and 11, the protruding ring 77 contacts the flat surface 28 and the cam portion 73 contacts the movable pieces 42 and 52, thereby causing the actuator ( Since the rotation moment M (refer FIG. 10, FIG. 11) to the unlocked position side arises in 70, the actuator 70 reliably rotates to an unlocked position. Therefore, the unsafe operation of the actuator 70 can be prevented.

As described above, according to the present embodiment, since the suction concave portion 72 is formed in the actuator 70 instead of the through hole, the actuator 70 is thin in the first contact 40 and the second contact ( Even in the case where the pitch between 50 is narrow, the mechanical strength of the actuator 70 does not significantly decrease (even in the case where the pitch of each suction concave portion 72 is narrow). In addition, when the actuator 70 is molded using a metal molding mold, it is possible to prevent the resin material, which is a raw material, from flowing around the portion corresponding to the suction recess of the molding mold. Since the actuator 70 can be reduced, the actuator 70 can be molded with high precision.

The connector 10 of this embodiment arrange | positions each contact 40 and 50 by 0.2 mm pitch, From the viewpoint of a spring design or rigidity, the plate thickness of the 1st contact 40 is 0.08 mm, and the 2nd contact 50 is carried out. The plate thickness of is set to 0.1 mm. Therefore, in consideration of manufacturing tolerances and tolerances, the width of the suction recess 72 corresponding to the first contact 40 is 0.1 mm, so that the suction recess 72 corresponding to the second contact 50 is formed. Since the width is set to 0.12 mm, the space | interval between adjacent suction recesses 72 becomes 0.09 mm. As described above, in the case of injection molding the actuator 70, which is a thin part having a cross-sectional shape repeatedly changing at a distance of about 0.1 mm, molding is very difficult when the flow resistance of the resin material is large. When the reduction is extremely reduced, the molding of the actuator 70 becomes possible. In addition, by changing the plate thickness of the first contact 40 and the second contact 50, it is possible to prevent the partition wall 24 of the entire insulator 70 from becoming thick.

In addition, when the actuator 70 rotates between the unlocked position and the locked position, the left and right rotation supporting shafts 71 move forward and backward, but the engaging projections 60 of the respective second contacts 50 are engaged with the engaging projections 60. Since the lower end of the actuator 70 is formed between the rear end of the stationary piece 51 and the rear end of the movable piece 52 (and the rear end of the stationary piece 41 and the movable piece 42) Can be rotated smoothly) between the rear ends.

In addition, since the suction concave portion 72 does not exist on the back surface of the actuator 70 and the distance from the unlocking holding surface 76 to the release preventing concave portion 74 is increased, the area of the lock holding surface ( Front and back length in Fig. 12) is large.

Therefore, it is easy to keep the actuator 70 in the stable position by the lock holding surface 75. FIG.

In addition, when the actuator 70 moves to the locked position, the fall prevention protrusion 56 of each second contact 50 is fitted to the corresponding fall prevention recessed portion 74 of the actuator 70, thereby moving to the locked position. It is possible to reliably prevent one actuator 70 from moving relative to the first contact 40 and the second contact 50 in all directions. Therefore, since the elasticity of the movable pieces 42 and 52 and the fluctuation of the lifting amount which are caused by the position change of the cam part 73 can be prevented, the contact pressure of each contact 40 and 50 with respect to the FPC 80 is prevented. However, fluctuations in contact resistance can be prevented. Also, by forming the suction concave portion 72 in the change of the through hole, the synergistic effect of the strength improvement near the cam portion 73 of the actuator 70, in particular, in the vicinity of the center where the actuator 70 tends to bend, Becomes remarkable. Moreover, the width | variety (part in FIG. 12 of the part located just under the suction recess 72 in FIG. 12) by the fall prevention recessed part 74 by the actuator 70 in the unlocking holding surface 76 side. Since the length of front and back) is long and the thickness can be made thick enough (the strength in the vicinity of the fall prevention recess 74 can be improved), it is possible to temporarily prevent the pull out of the rear of the actuator 70. Even if the front end portion of the projection 56 is in contact with the front surface of the fall prevention recess 74, the lock holding force by the fall prevention recess 74 and the fall prevention protrusion 56 is not greatly reduced, In addition, even when a strong extraction force is applied, it is difficult to reach breakage.

Moreover, since the fall prevention protrusion 56 and the cam part 73 are independent (it becomes discontinuous), the fall prevention protrusion 56 does not collide with the cam part 73, and it does not fall on the fall prevention protrusion 56. There is no fear that the cam portion 73 will become small.

In addition, since the fall prevention recess 74 is a recess independent from the suction recess 72 (not interlocked), the width of the fall prevention recess 74 affects the suction recess 72. Since it can set individually, it does not need to make it wide according to the suction recessed part 72.

Moreover, since the front surface of each fall prevention protrusion 56 is made into the flat surface orthogonal to front and rear, it can be reliably prevented that the actuator 70 escapes to the back by the fall prevention protrusion 56. As shown in FIG. In particular, since the engagement between the cam portion 73 of the actuator 70 and the engagement protrusion 60 of the second contact 50 is in a weak state immediately after being rotated from the unlocked position and the unlocked position, the front of the release preventing protrusion 56 Can be orthogonal to prevent the actuator 70 from being pulled out and at the same time, it is possible to realize stable rotational starting.

As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the said embodiment, It can implement, carrying out various deformation | transformation.

For example, the first contact insertion groove 25 of the entire insulator 20 may be changed to the second contact insertion groove 27, and the entire contact may be constituted by the second contact 50.

In addition, when the actuator 70 moves to the unlocked position or the locked position by positioning the flat (approximately horizontal) upper surface of the rear part of the fixing piece 51 of the second contact 50 above the front plane 28. The lock holding surface 75 and the unlocking holding surface 76 of 70 may be brought into surface contact with the upper surface flat surface of the rear portion of the fixing piece 51.

In addition, by removing the wall located between the neighboring fall prevention recesses 74, a long length fall prevention recess extending in the left-right direction may be formed in the actuator 70. FIG.

In addition, when the actuator 70 rotates to the position of FIG. 10, FIG. 11, the actuator 70 may be comprised so that the protrusion ring 77 may be located ahead of the cam part 73. As shown in FIG. In this way, when the actuator 70 rotates to the position of FIG. 10, FIG. Since the moment of rotation toward the lock position is generated in the actuator 70, the actuator 70 reliably rotates to the lock position.

Further, the thin plate-like connection object may be a cable other than the FPC, for example a flexibilized flat cable (FFC). In addition, the connection object may be inverted in the above embodiment to contact the contact portions 81a and 82b with the contact protrusions 45 and 54, respectively, and contact portions may be formed on both front and back sides of the contact object, and the actuator 70 may be locked. When moving, you may contact each contact protrusion part 45, 47, 54, 59 with each contact part.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the connector and FPC in which the actuator of one Embodiment of this invention is located in an unlocked position.

2 is a perspective view of the connector and the FPC when the FPC is inserted into the connector to move the actuator to the locked position.

3 is an exploded perspective view of the connector seen from the front side.

4 is an exploded perspective view of the connector seen from the rear side.

5 is a bottom view of the connector when the actuator is in the unlocked position.

6 is a cross-sectional view taken along the line VI-VI of FIG. 5.

FIG. 7 is a cross-sectional view taken along the line VIII-VIII in FIG. 5.

8 is a cross-sectional view taken along the line VIII-VIII in FIG. 5.

9 is a cross-sectional view taken along the line VIII-VIII in FIG. 7.

FIG. 10 is a cross-sectional view of the same shape as FIG. 7 when the actuator is located at an intermediate position between the unlocked position and the locked position. FIG.

FIG. 11 is a cross-sectional view of the same shape as FIG. 8 when the actuator is located at an intermediate position between the unlocked position and the locked position. FIG.

FIG. 12 is a cross-sectional view of the same shape as FIG. 7 when the actuator is located in the locked position. FIG.

FIG. 13 is a cross-sectional view of the same shape as FIG. 8 when the actuator is located in the locked position. FIG.

14 is a view showing a conventional connector,

(a) is a cross-sectional view of the shape as shown in FIG.

(b) is sectional drawing similar to FIG.

※ Explanation of Signs of Main Drawing Numbers

10: connector 20: insulator

21: FPC insertion hop 22: recess for actuator import

23: recessed part for bearing 24: partition wall

25: first contact insertion groove 26: support recess

27: 2nd contact insertion groove 28: flat surface

29: through hole 30: elastic engagement piece

31: engagement ring 33: mold missing hole

40: first contact 41: fixing piece

42: movable piece 43: deformation connection part

44: hook-shaped locking portion 45; Contact protrusion

46: projection preventing portion 47: contact projection

48: engaging protrusion 50: second contact

51: fixed piece 52: movable piece

53: deformation connecting portion 54: contact protrusion

55: intermediate protrusion 56: fall prevention protrusion

57: hook-type hook portion 58: side projections

59: contact protrusion 60: engaging protrusion

70: rotary actuator 71: rotary support shaft

72: recessed portion for suction 73: cam portion

74: fall prevention recess 75: lock retaining surface

76: unlocked holding surface 80: FPC (connection object)

81,82: circuit pattern 81a, 82a: contact portion

83: insulation cover layer 84: end reinforcement member

85: engagement recess CB: circuit board

Claims (4)

An insulator in which a thin plate-like connection object can be inserted and escaped; A contact having a fixed piece parallel to an insertion direction of the connection object fixed to the insulator and a movable piece pivotable with respect to the fixed piece about an intermediate portion, wherein the connection object is inserted between the fixed piece and one end of the movable piece; Between the lock position, which falls to the opposite side to the escape direction, and the unlock position rotated with respect to the lock position, being rotatable relative to the insulator and located between the movable end and the other end of the stationary piece, In a connector provided with an actuator having a cam portion for pressing one end portion in a direction away from the fixing piece to bring one end portion of the movable piece into contact with the connecting object. An anti-falling projection which is installed on the fixing piece so as to protrude from the other end side of the cam portion, and is engaged with the actuator positioned at the unlocked position on the opposite side to the one end; An engaging projection installed on the other end of the movable piece so as to be located toward the one end side rather than the falling prevention projection, and engaged with the cam portion of the actuator located at the lock position from the falling prevention projection side; A suction recess formed in the actuator, to which the other end of the fixing piece fits when the actuator is in the unlocked position; It is formed on the surface on the opposite side to the suction recess of the actuator, and when the position is in the lock position, the flat surface formed in the portion located at the one end portion of the fixing piece or the insulator in the end of the release prevention projections And a lock holding surface. The method of claim 1, And a release preventing projection fitted to a surface opposite to the suction recess of the actuator at the lock position to form a release preventing recess independent of the suction recess and the cam portion. The method according to claim 1 or 2. The connector on which the one end side of the said fall prevention protrusion is orthogonal to the insertion direction of the said connection object. The method of claim 3, wherein And said actuator is provided with a flat unlocking holding surface that is in surface contact with a flat surface formed at a portion located at said one end rather than said release preventing projection of said fixing piece or insulator when said actuator is in said unlocked position.

Images