KR101230921B1 - Connector - Google Patents

Abstract

To provide a connector which can reliably prevent a plate-like connection object having a caught portion protruding outward from being accidentally pulled out without damaging the caught portion or the fixing bracket. The connection object 80 having the caught portion 81 protruding toward the side is insertable and escapes, and is formed on the insulator 20 facing the circuit board CB and on the side wall 22 of the insulator 20, Engaging recesses 23 into which the engaging portions can be inserted and escaped, insertion recesses 33 formed on the side walls, and the surfaces of the engaging recesses covered by the side walls, and contacts 40 and 50 supported by the insulator. And a reinforcing part 62 fitted to the insertion recess, and a fixing bracket 60 soldered to the circuit board.

Description

Connector {Connector}

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

Patent document 1 is a conventional example of the connector which can connect thin-plate connection objects (FPC, FFC, etc.).

The connector includes an insulator mounted on and disconnected from a connection object, a plurality of metallic contacts fixed to the insulator side by side and electrically connected to the circuit board, and plate-shaped rotatably supported by the insulator. An actuator made of resin and a pair of right and left fixing brackets supported on both sides of the insulator in a state where a part is soldered to the circuit board are provided.

A recess is formed in the upper surface of the wall portion constituting both sides of the insulator, and a locking surface is formed in the front surface of the recess. The left and right fasteners are in contact with the outer surfaces of the left and right side walls and are supported by the insulator. The fastener is formed with a recess extending in the lateral direction and the recess, and the front face of the groove has a plate thickness surface that is parallel (continuous) to the locking surface in the lateral direction.

The connection object (balance conductor) of patent document 1 has the to-be-engaged part which protrudes outward on both left and right sides. When the connection object is inserted into the insulator in a state where the actuator is located at an unwinding position that is substantially perpendicular to the longitudinal direction of the insulator, the engaging portions on the left and right sides of the connecting object are engaged from above with respect to the left and right recesses and grooves.

In this state, when the actuator is rotated to the lock position on the side of the connection object in the escape direction, the actuator increases the contact pressure between the connection object and the contact, and the connection object and the contact become conductive.

When the force in the escape direction is inadvertently applied to the connection object, the left and right caught parts of the connection object are engaged with both the left and right locking surfaces (concave portions) and the plate thickness surface (grooves) so that the connection objects are intended from the insulator. Falling off is prevented.

<Patent Document 1> Japanese Patent Application Laid-Open No. 4215265

However, the connector has the following drawbacks.

That is, when the force in the unintentional escape direction is applied to the connection object, the left and right caught parts intensively contact the plate thickness surfaces (grooves) of the left and right fasteners with strong force, so that the caught parts may be cut or broken. .

In addition, if the assembly precision of the insulator of the fixed bracket or the molding precision of the insulator and the fixed bracket decreases, a position shift (step) occurs between the engaging surface of the insulator and the plate thickness surface of the fixed bracket. It is difficult to stabilize the holding force (extraction prevention force) of the connection object (the caught part) by the thickness surface).

In addition, since the outer surface of the fixing bracket is exposed (there is no suppression by the insulator), if the connecting object is rotated on the plane in which it is located, if the force is applied from the caught part to the fixing bracket, the fixing bracket may be bent outward. .

In addition, since the surface of the groove side (concave side) of the fixing bracket is exposed, when soldering and attaching the circuit board and the fixing bracket by the leaf, the solder may move through the fixing bracket and crawl up to the plate thickness surface. have. In this case, the recessed part is blocked by the rising solder, and the caught part of the connection object cannot be fitted into the groove of the fixing bracket, so that an unintended dropping of the connection object from the insulator cannot be prevented. .

It is an object of the present invention to provide a connector which can reliably prevent a thin plate-like connection object having a caught portion projecting outward from being accidentally pulled out without damaging the caught portion or the fixing bracket.

The connector of the present invention is an insulator in which a connecting object having a plated portion that is thin and protruding outward from at least one edge thereof is insertable and escapes, and one side in the thickness direction thereof faces the rotating substrate, and the sidewall of the insulator. A engagement recess formed in the side and the engaging portion capable of being hooked or peeled off from the other side in the thickness direction, and formed on a surface of one side of the side wall, and closer to the escape direction side of the connection object than the engaging recess. An insertion recess in which a surface positioned and facing the engagement recess portion is covered by the sidewall, a contact supported by the insulator and inserted into the insulator and in contact with the circuit board; The reinforcing portion to be fitted into the insertion recess from the one side of the surface It is characterized by including a fixing bracket soldered to the substrate circuit board.

An opening may be formed in the insertion recess in the end surface of the side of the connection object on the side wall, and the reinforcing portion may protrude from the end face through the opening.

In this case, the inclined surface may be further formed at the end of the other side of the cross section in the thickness direction toward the other side of the thickness direction as it goes toward the insertion direction of the connecting object.

The insulator is rotatable between a locking position that is substantially perpendicular to a direction of insertion and withdrawal of the connection object and falls between any one of the insertion direction and the escape direction to increase the contact pressure between the connection object and the contact. It may be provided with an actuator which supports and closes the engagement recessed portion from the other side in the thickness direction when positioned at the locked position.

In this configuration, the contact pressure between the connection object and the contact can be increased by rotating the actuator toward the locked position. Moreover, since the actuator prevents the engagement recesses from the other side in the thickness direction by rotating to the locked position, it is possible to reliably prevent the engaging portion of the connection object from being pulled from the engagement recesses to the other side in the thickness direction.

A guide piece extending from the engaging recess may be formed in the fixing bracket.

Further, the guide piece may be provided with a curved portion extending from the other side in the thickness direction to the engagement recess and extending toward the other side in the thickness direction as it goes toward the escape direction side.

In such a configuration, when the engaging portion of the connecting object is brought into contact with the guide piece (curved surface) when the connecting object is inserted into the insulator, the caught portion is guided by the guide piece to move to the engaging concave side. It is easy to fit into wealth.

In the said actuator, when it is located in the said locking position, you may form the fall prevention part which opposes the said engagement recessed part from the other side of the said thickness direction.

Moreover, you may provide the inner surface in the said engagement recessed part so that the suppression protrusion located in the other side of the said thickness direction may protrude more than the said caught part engaged with the said engagement recessed part.

In this way, the caught portion of the connection object can be reliably prevented from escaping from the engaging recess to the other side in the thickness direction.

In the present invention, the reinforcing portion of the fixing bracket is fitted to the insertion recess of the side wall of the insulator, so that the mechanical strength of the portion located on the side of the connection direction of the connection object is higher than the engagement recess of the side wall. Therefore, when a force in an unintentional escape direction is applied to the connection object, it is possible to reliably prevent the connection object from falling off from the insulator of the connection object (falling out of the engaging recess of the caught portion).

Furthermore, since the part of the engaging concave side of the reinforcing part is covered by the side wall (insulator) (not exposed), even if a force in an unintentional escape direction is applied to the connecting object, There is no fear of breakage.

In addition, only the side wall (inner surface of the engagement recess) which the assembly precision with respect to the insulator of a fastening fixture does not affect is contacted with the caught part of a connection object, and since it does not contact a fastening tool (reinforcement part) (by the side wall), It is easy to stabilize the holding force (extraction prevention force) of the caught part. In addition, since the caught part does not contact the reinforcing part, there is no fear that the reinforcing part (fixing bracket) is bent.

In addition, since the portion of the engaging concave side of the reinforcement part is covered (not exposed) by the side wall (insulator), the solder is moved through the fixing tool when soldering the circuit board and the fixing tool by reflow. Even if it climbs, the climbed solder is not located in the engagement recess. Therefore, there is no possibility that the caught portion of the connection object cannot be fitted into the engaging recess by the raised solder.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of the connector inclined toward the front of an embodiment of the present invention and viewed from above.
Fig. 2 is an exploded perspective view of the connector inclined toward the rear and viewed from below.
3 is a perspective view, viewed from above, with the actuator inclined forward of the FPC of the connector located in the unlocked position.
4 is a perspective view from above, inclined forward when the FPC is inserted into the connector in which the actuator is in the unlocked position.
Fig. 5 is a perspective view from above, inclined forward of the connector and the FPC when the FPC is inserted into the connector and the actuator is in the locked position.
6 is a cross-sectional view taken along the line VI-VI of FIG. 3.
7 is a front view of the connector when the actuator is in the locked position.
8 is a cross-sectional view taken along the line VIII-VIII in FIG. 7.
9 is a cross-sectional view taken along the line VIII-VIII in FIG. 7.
FIG. 10 is a cross-sectional view taken along the line VII-VII of FIG. 7.
FIG. 11 is a cross-sectional view taken along the line II-XI of FIG. 7.
It is a perspective view similar to FIG. 3 of a modification.
It is an enlarged plan view of the right end part of a connector.
FIG. 14 is an enlarged view of a VIV portion of FIG. 12.
15 is a right side view of the connector with the actuator in the unlocked position.
FIG. 16 is a cross-sectional view taken along the line IV-XIV in FIG. 12 when the caught portion of the FPC collides with the protrusion of the fastener when the FPC is inserted into the insulator.
17 is a cross-sectional view similar to FIG. 9.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described, referring an accompanying drawing. In addition, the direction of back, front, left, and right in the following description is based on the arrow direction in a figure.

The connector 10 of the present embodiment has a large component and includes an insulator 20, a first contact 40, a second contact 50, a fixing bracket 60, and an actuator 70.

The insulator 20 is injection molded of an insulating and heat resistant synthetic resin material. FPC insertion grooves 21 having substantially the same width as the FPC 80 are recessed in all of the upper surface of the insulator 20. A pair of side walls 22 positioned on both the left and right sides of the FPC insertion groove 21 are formed on both left and right sides of the entire insulator 20. Engaging recesses 23 concave downward are concavely provided on the upper surface of the central portion of the left and right side walls 22, and the front ends of the side walls 22 (parts located immediately before the engaging recesses 23). ) Constitutes the engagement protrusion 24. In addition, the support protrusions 25 spaced inward from the left and right side walls 22 are provided in the vicinity of the left and right sides of the bottom surface (upper surface) of the FPC insertion groove 21 to protrude upwards. The rear part of the upper surface is the support plane 26 which becomes a horizontal plane. The insulator 20 is formed with a first contact insertion groove 28 extending in the front-rear direction of a total of 17 copies. The rear portion of each first contact insertion groove 28 is formed in the rear portion of the insulator 20 (the portion where the FPC insertion groove 21 is not formed), and all of the first contact insertion grooves 28 are FPC insertions. It is formed in the bottom face of the groove 21. In addition, the insulator 20 is formed with a second contact insertion groove 29 extending in the front-rear direction of a total of 16 located between the neighboring first contact insertion grooves 28. The rear portion of each of the second contact insertion grooves 29 penetrates the rear portion of the insulator 20 in the front-rear direction, and all of the second contact insertion grooves 29 are formed on the bottom surface of the FPC insertion groove 21. . As illustrated in FIG. 11, an intermediate plate portion 30 is formed at the rear of the insulator 20 to separate the rear space of each second contact insertion groove 29 up and down. In addition, upper and left holes 31 extending in the vertical direction are recessed in the left and right both sides of the upper surface of the rear part of the insulator 20.

In the vicinity of the left and right edges of the lower surface of the insulator 20, fixing bracket grooves 32 extending in the front-rear direction are recessed upward. As shown, the front end of the fastener groove 32 is an insertion recess 33 that extends upward and opens at the front surface of the engagement protrusion 24. In addition, the rear end vicinity portion of the fixing bracket groove 32 is a locking hole 34 which communicates with the upper and left upper holes 31 extending upward. In addition, an intermediate opening 35 is formed at the central portion of the bracket fixing groove 32 in the longitudinal direction between the left and right side walls 22 and the support protrusion 25.

The 17 first contacts 40 in total and the 16 second contacts 50 in total are formed by sequentially transferring thin sheets of copper alloys (for example, phosphor bronze, beryllium copper, titanium copper) or corson-based copper alloys having spring elasticity. It was processed and molded into a shape using (stamping), and gold plating was performed after the base was formed on the surface by nickel plating.

As illustrated in FIG. 10 and the like, the first contact 40 constitutes a rear end portion, and includes a base piece 41 extending in the vertical direction, a fixed piece 42 extending forward from the lower end of the base piece 41, and a plane piece 41. A push arm 44 which extends from an upper end and is elastically deformable in the up and down direction, and is located between the fixing piece 42 and the press arm 44 and extends forward from the peg piece 41 and is elastically deformable in the vertical direction. The arm 46 is provided. The tail portion 43 protruding downward is formed at the front end of the fixing piece 42, and the support recess 45 is recessed in the vicinity of the front end of the lower surface of the press arm 44. As shown in FIG. In addition, a contact protrusion 47 protruding upward is formed at the front end of the contact arm 46. In addition, the engaging projection 48 is installed to protrude upward from the upper surface of the base piece (41).

Each first contact 40 is inserted from the front with respect to each first contact insertion groove 28 of the insulator 20. As shown in FIG. 10, when each first contact 40 is inserted into the first contact insertion groove 28, the bottom surface of the fixing piece 42 contacts the bottom surface of the corresponding first contact insertion groove 28. The tail portion 43 is engaged from the front to the front end of the bottom of the insulator 20. In addition, the base piece 41 is located in the rear part of the 1st contact insertion groove 28, and each engagement protrusion 48 is dug into the ceiling surface of the rear part of the 1st contact insertion groove 28. As shown in FIG. Therefore, when the first contact 40 is attached to the first contact insertion groove 28, the tail portion 43 and the engaging protrusion 48 are connected to the first contact insertion groove 28 of the first contact 40. Post-war movement is regulated. In addition, the entirety of the push arm 44 is located in the FPC insertion groove 21 and the lower surface of the tail portion 43 is positioned below the lower surface of the insulator 20.

As shown in FIG. 11, the second contact 20 includes a body 51 extending to the lower end constituting the rear end portion, a contact arm 52 extending forward from the bottom of the body 51, and the body 51. It has a push arm 54 extending forward from the bottom of the. A contact protrusion 53 protruding upward is formed at the front end of the contact arm 52, and an engaging protrusion 55 is formed to protrude upward on the upper surface near the proximal end of the contact arm 52. Moreover, the tail part 56 and the rear catching part 57 which protrude downwards are provided in the lower end part of the base piece 51, respectively.

Each second contact 50 is inserted into each second contact insertion groove 29 from the rear of the insulator 20. As shown in FIG. 11, when each contact 50 is inserted into the second contact insertion groove 29, the rear surface of the bottom surface of the contact arm 52 contacts the bottom surface of the corresponding second contact insertion groove 29. The rear catching portion 57 is caught from the rear portion at the rear end of the bottom of the insulator 20. Since the rear part of the contact arm 52 is in contact with the bottom surface of the second contact insertion groove 29, it is impossible to elastically deform in the up and down direction, but the entirety of the contact arm 52 is upward from the bottom surface of the second contact insertion groove 29. Because it is separated from each other, elastic deformation in the vertical direction is possible. In addition, the contact protrusion 53 is located in front of the contact protrusion 47 of the first contact 40 (see FIGS. 10 and 11). In addition, the base piece 51 is located in the rear part of the 2nd contact insertion groove 29, and the engagement protrusion 55 is eaten from the lower surface of the intermediate plate part 30 from below. Therefore, when the second contact 50 is attached to the second contact insertion groove 29, the rear catching portion 57 is engaged by the engaging projection 55 so that the second contact insertion groove 29 of the second contact 50 is formed. Post-war movement is regulated. In addition, the entirety of the push arm 54 is located in the FPC insertion groove 21, and the lower surface of the tail portion 56 is located below the lower surface of the insulator 20 and is positioned at the same height as the lower surface of the tail portion 43.

The pair of right and left fixing brackets 60 is a press-formed product of a metal plate, and includes a one-piece portion 61 extending in the front-rear direction, a reinforcement portion 62 extending upward from the front end of the one-piece portion 61, and the one-piece portion 61. The anti-logging protrusion 63 extending upward from the rear end of the N-axis and the intermediate protrusion 65 extending upward from the middle portion of the base piece 61 are provided. On the rear of the anti-fallout protrusion 63, the locking protrusion 64 is installed to protrude. In addition, the upper surface of the intermediate projections 65 is the upper support surface 66 which becomes a horizontal plane, and the entirety of the intermediate projections 65 extends while bending upwards toward the front side, and the front surface thereof curves the curved surface 68. The guide piece 67 which comprises is protruded. Moreover, the tail part 69 protrudes from the lower surface of the whole piece part 61 to the lower surface.

The fixing bracket 60 is pressed against the fixing bracket grooves 32 on the left and right sides of the insulator 20 from below. When the fixing bracket 60 is pressed into the fixing bracket groove 32, the reinforcing portion 62 is pressed into the insertion recess 33. As shown in FIG. In addition, the fall prevention protrusion 63 is press-fitted into the locking hole 34 so that its upper portion is located in the middle plate portion 30, and the locking protrusion 63 is eaten into the rear surface of the locking hole 34 so that The back and forth movement of the insulator 20 and the downward movement are regulated. In addition, the intermediate protrusion 65 penetrates the intermediate opening 35 upward, and the guide piece 67 (curved surface 68) engages in the engaging recess 23 (the upper part of the guide piece 67 is engaged). Directly above (23). In addition, the lower surface of the tail portion 69 is located below the lower surface of the insulator 20 and is positioned at the same height as the lower surface of the tail portion 43 and the tail portion 56.

The rotary actuator 70, which is a plate member extending in the left and right directions, is injection molded of a heat-resistant synthetic resin material using a metal mold. Rotating support shafts 71 extending toward left and right sides and constituting the same axis are protruded from the lower ends of the left and right sides. In the vicinity of the lower end of the actuator 70, a total of 17 female insertion holes 72 penetrating the actuator 70 in the plate thickness direction are formed side by side in the left and right directions, and each of the female insertion holes 72 has Immediately below, a caught shaft 73 is formed to block the lower end of each of the arm insertion through holes 72. In the vicinity of the lower end of the back surface of the actuator 70 (rear surface in FIGS. 1 and 2), a total of 16 arm disengagement recesses 74 located between the arm insertion holes 72 adjacent to each other are recessed. It is. In addition, a total of 16 cam portions 75 are provided at the lower ends of the portions positioned between the arm insertion holes 72 adjacent to each other, and the lower portion of the surface of the actuator 70 (the front surface in FIGS. 1 and 2) A flat locking surface 76 is provided. In addition, at the upper end portions of the left and right sides of the actuator 70, locking stoppers (fall-off prevention portions) 77 extending to the left and right sides, respectively, are provided to protrude, and the left and right rotation support shafts 71 and the locking stoppers 77 are provided. The bracket fitting recessed part 78 is respectively formed in between. In addition, a pair of left and right flat locking stopper surfaces 79 are formed on the left and right sides of the surface of the actuator 70.

The actuator 70 is inserted into the FPC insertion groove 21 from the front in a state approximately orthogonal to the insulator 20, as shown in Figs. 1 and 2, and corresponds to each of the arm insertion through holes 72. The push arm 44 of the first contact 40 is inserted to engage the support recess 45 with the engaging shaft 73 (see FIG. 10) and correspond to the recesses 74 for releasing each arm. Insert the front end of the push arm 54 of the second contact 50 (see Fig. 11) and put the left and right rotary support shaft 71 on the upper support surface 66 of the left and right fixing bracket 60 It is attached to the insulator 20 and the fixing bracket 60 so as to be rotatable about the left and right rotation support shaft 71. In this way, when the actuator 70 is attached to the insulator 20, each caught shaft 73 is fitted to the support recess 45 of the first contact 40, and the left and right rotation support shafts 71 Since it is located between the rear part of the insulator 20 and the guide piece 67 of the fastening tool 60 (refer FIG. 6, FIG. 9), the back and front with respect to the insulator 20 and the fastening tool 60 of the actuator 70 are shown. The movement is limited to a certain range. In addition, relative movement in the downward direction with respect to the left and right fixing brackets 60 is regulated, and the insulator 20 and the insulator 20 of the actuator 70 are controlled by the upper surface of each of the engaging shafts 73 and the ceiling surface of the support recess 45. The fixed bracket 60 is not accidentally pulled forward.

The actuator 70 is located between the back surface of the insulator 20 which is approximately orthogonal to the insulator 20 and the unwinding position (the position shown in FIGS. Can be rotated.

In order to mount the above-described connector 10 on the upper surface (circuit forming surface) of the circuit board CB (refer to the imaginary line of FIGS. 6 and 9 to 11), suction means located above the connector 10 (not shown) The tail portion 43 of each of the first contacts 40 and the second portion of each of the first contacts 40 are moved by absorbing the rear upper surface of the insulator 20 (the portion where the intermediate plate portion 30 is not formed) by moving the suction means. The tail portion 56 of the contact 50 is placed on a circuit pattern (not shown) coated with a predetermined amount of solder on the circuit board CB, and the tail portions 69 of the left and right fasteners 60 are mounted on the circuit board (not shown). It is mounted on a ground pattern (not shown) coated with a predetermined amount of solder paste on CB). Then, each solder paste is heated and melted in the reflow furnace, and each tail portion 43 and tail portion 56 are soldered to the circuit pattern to solder each tail portion 69 to the ground pattern.

The flexible printed circuit (FPC) 80, which is a connection object, is a thin plate-like long elastic material that can be elastically deformed, and its thickness is the upper and lower intervals of the cam portion 75 and the contact protrusion portion 47 when the actuator 70 is located at its release position. It is smaller than the vertical gap of the cam part 75 and the contact protrusion part 53. As shown in FIG. The FPC 80 is a laminated structure formed by adhering a plurality of thin plate materials to each other, and a total of 17 first circuit patterns (not shown) are linearly extended along the extension direction of the FPC 80 on the lower surface of the FPC 80. And a total of 16 second circuit patterns positioned between the first circuit patterns adjacent to each other and both ends thereof retreating from the ends of the first circuit patterns, and both ends of the first circuit pattern and the second circuit pattern are formed. The lower surface of the excluded portion is covered by an insulating cover layer. In addition, a pair of caught portions 81 protruding outward are integrally provided at both left and right sides of at least one end portion in the longitudinal direction of the FPC 80.

When the actuator 70 of the connector 10 integrated with the circuit board CB is in the unlocked position shown in Figs. 3, 4 and 6, the FPC 80 with respect to the FPC insertion groove 21 of the insulator 20 is mounted. End) is insertable from the front. At this time, the upper and lower intervals of the cam portion 75 and the contact protrusions 47 and the upper and lower intervals of the cam portion 75 and the contact protrusions 53 are larger than the thickness of the FPC 80. 1 Smoothly between the press arm 44 of the contact 40 and the contact arm 46 (contact protrusion 47), and between the press arm 54 and the contact arm 52 (contact protrusion 53). Is inserted. Further, when the rear end surface of the caught portion 81 of the FPC 80 contacts the curved surface 68 of the guide piece 67, the caught portion 81 is engaged with the curved surface 68 by the engaging recess 23. The left and right caught portions 81 are smoothly fitted from the upper side with respect to the corresponding engagement recesses 23 because they are guided to the side) (see Fig. 4).

When the actuator 70 is rotated forward in this state, the upper surface of the FPC 80 is pushed downward by the cam portion 75 of the actuator 70 so that the contact protrusions 47 of the first contacts 40 The first circuit pattern of the FPC 80 reliably contacts, and the contact protrusion 53 of each second contact 50 reliably contacts the first circuit pattern. Then, when the actuator 70 rotates to the locking position shown in Figs. 5, 7, 9 and 11, the bracket disengagement portion 78 becomes the intermediate projection 65 (and the guide piece of the fixing bracket 60). 67)), while the locking stopper 77 contacts the upper surface of the engagement protrusion 24, the lower portion of the locking stopper surface 79 (rear when the locking position is located) supports the support protrusion 25. The upper part of the left and right locking stopper surface 79 (all when positioned in the locked position) blocks the upper surface of the left and right engagement recesses 23 in contact with the plane 26, and the locking and holding surface 76 is FPC. Since the contact with the upper surface of the end of the (80), the contact of each of the contact projections 47 and the circuit pattern and the contact of each of the contact projections 53 and the second circuit pattern is maintained and the locked position of the FPC (80) maintain. Therefore, the circuit board CB and the FPC 80 are electrically connected to each other through the first contact 40 and the second contact 50. In addition, the rear surface of the lock stopper 77 is located at the rear side than the rear surface of the engagement protrusion 24 (see Fig. 9).

In addition, since the upper surface of the locking stopper 77 and the engaging protrusion 24 are in contact with each other (or may be spaced apart from each other), it is difficult to damage the actuator 70 even if the actuator 70 is excessively rotated. It is also effective for securing the reinforcement part 62.

In this locked state, for example, when an external force is unexpectedly caught forward with respect to the FPC 80, the front and rear surfaces of the engagement recess 23 corresponding to the left and right caught portions 81 are corresponding (the rear surface of the engagement protrusion 24). Is caught up in. Since the reinforcement part 62 of the fastening tool 60 is located in the engagement protrusion part 24 of the connector 10, the mechanical strength of the said part is high. Therefore, it is possible to reliably prevent the FPC 80 from escaping from the insulator 20 (the caught portion 81 is pulled out of the engagement recess 23). In addition, since the rear surface of the reinforcement part 62 is covered (not exposed) by the engagement protrusion part 24 ((insulator 20)), when such external force is applied, the caught part 81 is made of a metal reinforcement part ( There is no strong contact with 62. Therefore, there is no fear that the FPC 80 (the caught portion 81) is cut or broken.

The engagement portion 81 of the FPC 80 contacts only the front surface of the engagement recess 23 (the front surface of the engagement protrusion 24) and does not contact the reinforcing portion 62. When the front surface (back surface of the engagement recessed portion 24) of 23 is formed to have a predetermined position and a predetermined shape, a desired holding force (of the catching portion 81) (falling prevention force) is obtained and the FPC 80 ) Can surely be prevented from falling out of the desired position. Therefore, compared with the prior art which engages the caught part of a connection object with both an insulator and a fixed bracket, it is easy to stabilize the holding force (fall prevention force) of the FPC80 (engaged part 81).

In addition, since the caught portion 81 does not contact the reinforcement portion 62, there is no fear that the reinforcement portion 62 (fixing fixture 60) is bent when an external force is applied to the FPC 80.

In addition, since the rear part of the reinforcement part 62 is covered (not exposed) by the engagement protrusion part 24 (the insulator 20), the circuit board CB and the fixing bracket 60 are soldered by reflow. Even if the solder rises through the fixing tool 60 at the time of attachment, the risen solder is not located in the engagement recess 23. Therefore, the caught portion 81 of the FPC 80 cannot be fitted to the engagement recess 23 by the solder that has risen.

Moreover, when the actuator 70 rotates to the locked position, the actuator 70 (locking stopper surface 79) blocks the upper surface of the engaging recess 23 and the rear surface of the locking stopper 77 engages the engaging protrusion 24. Because it is located behind the rear side of the back side), it is surely prevented that the caught portion 81 of the FPC 80 is pulled upward from the engaging recess 23 when an external force in all directions with respect to the FPC 80 is applied. can do.

In addition, when the actuator 70 is rotated to the unlocked position and the FPC 80 is moved forward while the left and right caught portions 81 are released upward from the corresponding engagement recesses 23, the FPC 80 is moved forward. The end can be withdrawn from the insulator 20.

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, and implements various deformation | transformation.

For example, you may implement the aspect of the modification shown in FIGS. 12-17.

The basic configuration of the connector 10 is the same as that of the connector 10, but the shape of the FPC insertion groove 20 and the fixing bracket 60 is slightly different from that of the FPC insertion groove 20 and the fixing bracket 60 (upper hole 31 ) Is different from that of the connector 10, but the function is the same).

The upper edge of the front end of the engaging projection 24 of the FPC insertion groove 20 is formed with an inclined surface 24a extending upward as it goes from front to rear. In addition, as illustrated in FIG. 13, each portion formed between the left and right sidewalls 22 and the front edge of the main body portion 20a (the portion located between the left and right sidewalls 22) of the FPC insertion groove 20 is flat. In view of the above, the inclined connection portion 22a is inclined at an angle of about 45 degrees with respect to the front-back direction.

On the upper end of the reinforcing part 62 of the fixing bracket 60, the protrusion part 62a which extends toward the upper part after extending forward protrudes integrally. Therefore, when the fixing bracket 60 is installed in the fixing bracket groove 32, the protrusion 60 protrudes forward from the front end face of the engagement protrusion 24 as shown.

Left and right caught parts of the FPC 80 when the end of the FPC 80 is inserted from the front with respect to the FPC insertion groove 21 of the FPC insertion groove 20 'when the actuator 70 is in the unlocked position. When the 81 passes through the position lower than the upper surface of the left and right engagement protrusions 24, the caught portion 81 collides with the protrusion 62A as shown in Fig. 16 (to the engagement protrusions 24). Does not crash). However, since the mechanical strength of the metal protrusion 62a (fixing bracket 60) is high, the protrusion 62a (fixing bracket 60) does not deform even if the caught portion 81 collides violently, and thus hangs. There is no fear that the alignment protrusions 24 will be deformed or damaged.

In addition, since the inclined surface 24a is formed in the engagement protrusion 24, the upper surface side of the engagement protrusion 24 is more retracted with respect to the protrusion 62a, so that the caught portion 81 is attached to the protrusion 62a. The contact can be made securely (the engaging projection 24 can be reliably protected).

In addition, even if the caught portion 81 collides with the inclined surface 24a of the engagement protrusion 24 when the FPC 80 is inserted into the FPC insertion groove 21, the caught portion 81 is inclined surface 24a. Slide smoothly to the rear. Furthermore, since the inclined joint portion 22a is formed in the FPC insertion groove 20, the above-described embodiment in which the corner portions formed between the left and right side walls 22 and the front edge of the main body portion 20a are at right angles in plan view. Compared to the FPC insertion groove 20, the mechanical strength of the FPC insertion groove 20 (connecting portion of the main body 20a and the side wall 22) is higher. Therefore, even if the caught portion 81 collides with the inclined surface 24a of the engagement protrusion 24, there is little possibility that the engagement protrusion 24 will be deformed or damaged.

15, the lower end of the protrusion 62a may extend to the same position as the lower end of the reinforcing part 62, as shown by a virtual line in FIG. In such a configuration, when the end portion of the FPC 80 is inserted to the front of the FPC insertion groove 21, the left and right caught portions 81 may pass through a position lower than the upper surface of the left and right engagement protrusions 24. At this time, since the caught portion 81 reliably collides with the protrusion 62a (does not collide with the engaging protrusion 24), deformation and damage of the engaging collision portion 24 can be prevented more reliably.

In addition, even if the pressing projection (not shown) located above the engaging portion 81 engaged with the engaging recess 23 on the inner surface (front or rear) of the engaging recess 23 is provided to protrude. good. This configuration makes it possible to more reliably prevent the caught portion 81 of the FPC 80 from falling out of the engaging recess 23.

In addition, the FPC 80 may form the engagement recess 23 only at one edge.

Further, the entire second contact insertion groove 29 may be changed to the first contact insertion groove 28, and the second contact contact 50 may be configured as the first contact 40.

Instead of the actuator 70, the insulator 20 (and not shown) which is rotatable between an unlocking position perpendicular to the front-rear direction (rotating upward) and a locking position that falls backward and becomes substantially horizontal is provided with an insulator 20 (and a fixed bracket ( 60).

In addition, in the free state, the vertical gap between the press arm 44 and the contact protrusion 47 and the vertical gap between the press arm 54 and the contact protrusion 53 are smaller than the thickness of the FPC 80 and at the same time the connector 10 The actuator 70 may be omitted.

In addition, a thin-plate connection object may be a cable other than FPC, for example, a flexible flat cable (FFC).

10, 10 ': connector 20, 20; Insulator
20a: main body of the insulator 21: FPC insertion groove
22 side wall 22a inclined connection
23: engagement recessed portion 24: engagement protrusion
24a: slope 25: support protrusion
26: support plane 28: the first contact insertion groove
29: second contact insertion groove 30: the middle plate portion
31: upper hole 32: bracket fixing groove
33: insertion recess 34: engaging hole
35: intermediate opening 40: the first contact
41: plane 42: stationary
43: tail part 44: press arm
45: support recess 46: contact arm
47: contact protrusion 48: engaging protrusion
50: second contact 51: gas
52: contact arm 53: contact protrusion
54: push arm 55: engaging protrusion
56: tail portion 57: rear locking portion
60, 60; Reinforcement 61
62, 62 ': reinforcement 62a: protrusion
63: fall prevention protrusion 64: jamming projection
65: middle projection 66: the upper ground surface
67: Guide 68: Curved Surface
69: tail portion 70: rotary actuator
71: rotation support shaft 72: through hole for female insertion
73: caught axis 74: recessed part for arm
75: cam portion 76: lock holding surface
77: lock stopper (lock prevention part) 78: recess for recessing the bracket
79: lock stopper surface 80: FPC (connection object)
81: caught part CB: circuit board

Claims (8)

An insulator in which a connecting object having a plate shape and having a caught portion projecting outward from at least one edge thereof is insertable and escapeable, and one side in the thickness direction thereof faces the circuit board;
Engaging recesses formed on the sidewalls of the insulator and capable of being hooked or peeled off from the other side in the thickness direction;
An insertion recess formed in said one side surface of said side wall, positioned on the escape direction side of the connection object rather than said engagement recess and covered by said side wall in a direction toward the engagement recess;
A contact supported by the insulator, in contact with the connection object inserted in the insulator, and in contact with the circuit board;
Fixing bracket which has reinforcement part which fits into the said recessed part from the said one surface side, and is soldered to the said circuit board.
Connector comprising a. The method of claim 1,
The insertion recess is formed with an opening in a cross section of the side of the connection object in the escape direction on the side wall,
And the reinforcing portion protrudes from the cross section through the opening. The method of claim 2,
The connector which formed the inclined surface toward the other side of the said thickness direction as it goes to the insertion direction of the said connection object in the edge part on the other side of the said thickness direction of the said cross section. The method of claim 3, wherein
The insulator is rotatable between a release position orthogonal to the direction of insertion and escape of the connection object and a locking position that falls between either the insertion direction and the escape direction to increase the contact pressure between the connection object and the connector. And an actuator, which is supported and closes the engagement recessed portion from the other side in the thickness direction when positioned at the locked position. 5. The method of claim 4,
The connector which provided the guide piece which escaped in the said engagement recessed part in the said fixing bracket. 6. The method of claim 5,
And a curved surface extending in the guide piece from the other side in the thickness direction to the engagement recess and extending toward the other side in the thickness direction as it goes toward the escape direction side. The method according to claim 6,
The connector provided with the said actuation prevention part which opposes the said engagement recessed part from the other side of the said thickness direction when it is located in the said lock position. 8. The method of claim 7,
And a connector provided on an inner surface of the engagement recess to protrude a pusher located on the other side in the thickness direction than the engagement portion engaged with the engagement recess.

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