JP2013062057A - Flexible intensive wiring connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance adhesion of the terminal of flexible intensive wiring and the mounting surface of a slider without increasing the wall thickness.SOLUTION: The flexible intensive wiring connector includes a slider 30 having a mounting surface 31 on which the terminal 21 of flexible intensive wiring 20 is mounted and a protrusion 33 formed on the side surface continuous to both ends of the mounting surface, and a cover 40 being attached to the slider and pressing the terminal of flexible intensive wiring against the cover 40. The cover has a longitudinal member 41 extending in the arrangement direction of the terminal of flexible intensive wiring, and a lock arm 42 projecting from both ends of the longitudinal member along the side surface of the slider and provided with an opening 44 which can lock the protrusion 33. The longitudinal member is formed to warp convexly toward the mounting surface, and provided with a straight rib 47 extending in the longitudinal direction of the longitudinal member and having both ends fixed to the convex surface thereof.

Description

  The present invention relates to a flexible concentrated wiring connector.

  Flexible integration of flexible flat cable (FFC), flexible wiring board (FPC), etc. for interconnection of various electronic devices and electrical devices in order to reduce wiring space or improve the flexibility of wiring paths Wiring is used.

  The FFC is formed by sandwiching a plurality of arranged foil-like conductors between insulating films and having terminals for connecting to other electric circuits at both ends. In addition, in the FPC, in order to connect an electric circuit formed on a flexible substrate to an external electric circuit, a terminal made of a plurality of foil-like conductors is formed on the edge of the substrate. Such a terminal of flexible concentrated wiring is usually connected to another electric circuit via a detachable connector.

  Moreover, since the terminal of flexible concentrated wiring has low rigidity, there exists a problem that it deform | transforms by the insertion resistance at the time of inserting in the connector of a connection other party, or insertion shortage arises. Therefore, in general, it has been proposed to attach a rigid terminal connector (flexible aggregated wiring connector) to the terminal of the flexible aggregated wiring and insert it into the connector of the connection partner via the terminal connector (Patent Document 1). reference).

  The terminal connector for flexible aggregated wiring described in Patent Document 1 is a base member (hereinafter, referred to as protrusions) formed on the mounting surface on which the terminal part of the flexible aggregated wiring is installed and the side surfaces that are connected to both ends of the mounting surface. And a cover that presses the terminal portion of the flexible aggregated wiring against the placement surface. The cover has a longitudinal member extending in the arrangement direction of the terminal portions of the flexible aggregated wiring, and a projection protruding from both ends of the longitudinal member along the side surface of the slider, and an opening that can be locked to the projection on the side surface is formed. It is configured with a joint member.

  Assembling the flexible aggregated wiring to such a terminal connector is performed by placing the end of the flexible aggregated wiring on the slider mounting surface, aligning the cover longitudinal member with the terminal of the flexible aggregated wiring, The joining member is pressed along the side surface of the slider, and the opening of the engaging member is engaged with the protrusion on the side surface of the slider. Here, if the opening edge of the engagement member of the cover coincides with the lower edge of the protrusion on the side surface of the slider, the terminal portion of the flexible aggregate wiring can be brought into close contact with the mounting surface of the slider.

  However, in Patent Document 1, for example, when the terminal portion of the flexible aggregate wiring is connected to the terminal connection tool in a state where the terminal portion of the flexible aggregate wiring is assembled to the terminal connector (hereinafter referred to as an extending portion), It is not considered that the terminal portion of the flexible aggregate wiring is deformed.

  That is, depending on the wiring layout or the like when the flexible aggregated wiring is assembled to various electronic devices or electrical devices, the extended portion of the flexible aggregated wiring is used in an angled state with respect to the mounting surface. Sometimes. In this case, since an elastic force acts on the terminal portion of the flexible aggregated wiring in a direction to return the bending, the terminal portion pushes up the longitudinal member of the cover and rises from the mounting surface. Here, since the longitudinal member is thin and has relatively low rigidity, the terminal portion of the flexible aggregate wiring presses the longitudinal member so that the terminal portion becomes concave with respect to the mounting surface along with the longitudinal member in the arrangement direction. Deforms and deforms. As a result, the adhesiveness between the flexible aggregated wiring and the terminal connector may be reduced, and the electrical reliability may be impaired.

  In this regard, by increasing the thickness of the longitudinal member of the cover and improving the rigidity, a method of preventing the bending deformation of the terminal portion of the flexible aggregated wiring is conceivable, but other methods such as a printed wiring board that supports the connector of the connection partner It may be difficult due to restrictions on the clearance dimension with the member.

  On the other hand, the cover's longitudinal member is warped so as to be convex toward the slider mounting surface, and when the cover is assembled to the slider, the restoring force when the cover is elastically deformed flat is used. And the technique which suppresses the bending deformation of a terminal part by pressing the terminal part of flexible concentrated wiring is disclosed (patent document 2).

JP 2006-85889 A JP 2011-44381A

  However, the technique of Patent Document 2 has room for further improvement in improving the degree of adhesion between the terminal portion of the flexible aggregate wiring and the mounting surface of the slider. That is, since the restoring force due to the elastic deformation of the cover correlates with the thickness of the cover, in order to obtain a greater degree of adhesion, the thickness must be increased in addition to warping the cover.

  This invention makes it a subject to improve the contact | adhesion degree of the terminal part of a flexible aggregation wiring, and the mounting surface of a slider, without increasing thickness.

  In order to solve the above problems, a flexible aggregated wiring connector according to the present invention includes a mounting surface on which a terminal portion of the flexible aggregated wiring is installed, and a base member in which protrusions are formed on side surfaces connected to both ends of the mounting surface. A cover member that is assembled to the base member and presses the terminal portion of the flexible aggregated wiring against the mounting surface, and the cover member includes a longitudinal member that extends in the arrangement direction of the terminals of the flexible aggregated wiring and both ends of the longitudinal member Projecting in a direction along the side surface of the base member and having an engagement member formed with an opening that can be locked to the projection, and used when inserting the terminal of the flexible aggregated wiring into the connector of the connection partner A flexible aggregated wiring connector, wherein the longitudinal member is formed to warp toward the mounting surface and extends in the longitudinal direction of the longitudinal member to become a concave portion of the longitudinal member. Wherein the straight rib ends in the plane is fixed is formed.

  According to this, when the cover member is assembled to the base member, when the longitudinal member is elastically deformed flat along the placement surface, the rib is also elastically deformed by being pulled toward both ends. Therefore, since the restoring force due to the elastic deformation of the longitudinal member is strengthened by the restoring force of the elastic deformation of the rib, the force with which the cover member presses the terminal portion of the flexible aggregated wiring can be increased. Thereby, the contact degree of the terminal part of a flexible aggregate wiring and the mounting surface of a slider can be improved, without increasing the thickness of a cover member.

  ADVANTAGE OF THE INVENTION According to this invention, the contact degree of the terminal part of a flexible concentrated wiring and the mounting surface of a slider can be improved, without increasing thickness.

1 is an exploded perspective view of an embodiment of a flexible concentrated wiring connector to which the present invention is applied. It is a figure which shows the state which inserts and connects the flexible aggregation wiring connector of FIG. 1 to the connector of a connection other party. It is a front view of the flexible concentrated wiring connector of FIG. It is a figure which shows the external appearance of the cover member of the state assembled | attached to the flexible concentrated wiring connector of FIG. It is a figure explaining operation | movement when the flexible concentrated wiring connector of FIG. 1 elastically deforms. It is a perspective view of other embodiment of the flexible concentrated wiring connector by which this invention is applied. It is a perspective view of other embodiment of the flexible concentrated wiring connector by which this invention is applied. It is a figure which shows the example of the deformation | transformation deformation | transformation of a terminal part when the extension part continued to the terminal part of a flexible concentrated wiring is bent and used.

  Hereinafter, a flexible collective wiring connector to which the present invention is applied will be described based on embodiments. As shown in FIG. 1, the flexible aggregated wiring connector 10 of the present embodiment includes a slider 30 that is a base member that is assembled with the flexible aggregated wiring 20 being sandwiched, and a cover 40 that is a cover member.

  A flat placement surface 31 on which the terminal portion 21 of the flexible aggregate wiring 20 is installed is formed along the longitudinal direction of one surface of the slider 30 (upper surface in FIG. 1), and is continuous with both longitudinal ends of the placement surface 31. A beak-like protrusion 33 is formed on the side surface 32. Positioning bosses 34 and 35 that are inserted into two positioning holes 22 and 23 formed in the terminal portion 21 of the flexible aggregated wiring 20 are provided upright at both ends of the mounting surface 31. The positioning boss 34 is formed in a circular shape corresponding to the circular positioning hole 22, for example, and the positioning boss 35 is formed in an oval shape corresponding to the oval positioning hole 23, for example. This is to prevent the conductor exposed surface of the terminal portion 21 of the flexible aggregate wiring 20 from being placed facing down.

  The cover 40 is a member that presses the terminal portion 21 of the flexible aggregated wiring 20 against the placement surface 31 of the slider 30, and the length extending in the arrangement direction of the terminal portions 21 of the flexible aggregated wiring 20, that is, the longitudinal direction of the terminal portion 21. A member 41 and a lock arm 42 which is an engaging member extending from both ends of the longitudinal member 41 in a direction along the side surface 32 of the slider 30 are formed. In the lock arm 42, an opening 44 is formed in a locking portion 43 that can be locked to the protrusion 33 on the side surface 32 of the slider 30, and the upper end of the opening 44 is extended to the end of the longitudinal member 41. . In addition, positioning holes 45 and 46 into which the positioning bosses 34 and 35 of the slider 30 are inserted are formed at both ends of the longitudinal member 41. The characteristic configuration of the cover 40 will be described later.

  In the flexible aggregated wiring connector 10, the terminal portion 21 of the flexible aggregated wiring 20 is installed on the placement surface 31 of the slider 30, and the terminal portion 21 of the flexible aggregated wiring 20 in which the longitudinal member 41 of the cover 40 is installed on the placement surface 31. , The lock arm 42 of the cover 40 is pushed down along the side surface 32 of the slider 30, and the locking portion 43 of the lock arm 42 is locked to the protrusion 33 of the side surface 32 to be assembled.

  In the present embodiment, the flexible aggregated wiring 20 is formed by arranging a plurality of foil-like conductors 24 and sandwiching both surfaces with an insulating film, and is connected on one side to both ends with other electrical circuits. The flexible flat cable formed by notching the insulating film (upper surface in FIG. 1) and exposing the terminal portion of each conductor is shown as an example. In addition, the flexible aggregated wiring 20 has an extension portion connected to the terminal portion in an appropriate length in accordance with the intended use, but is shown in a simplified manner in the drawing.

  As shown in FIG. 2, the flexible aggregated wiring 20 assembled to the slider 30 and the cover 40 in this way is flexible to the insertion port 51 of the connector 50 attached to a printed wiring board (PCB) (not shown). The conductor exposed surface of the terminal portion 21 of the aggregated wiring 20 is inserted with the conductor exposed surface downward in the drawing, and the terminal portion 21 of the flexible aggregated wiring 20 is connected to a connection terminal provided inside the connector 50.

  As a result, even the terminal portion 21 of the flexible aggregated wiring 20 having flexibility is fixed by the flexible aggregated wiring connector 10 including the slider 30 and the cover 40, so that it is flexible against the insertion resistance on the connector 50 side. Aggregate wiring 20 can be stably inserted and connected. Further, in a state where the flexible aggregated wiring 20 is inserted and connected to the connector 50, the engaging member 36 formed on the surface on the opposite side of the mounting surface 31 of the slider 30 engages with the protrusion 52 of the connector 50 so that the insertion state is achieved. It comes to hold.

  By the way, the flexible aggregated wiring 20 is bent at an extended portion depending on a wiring layout in a state assembled to various electronic devices or electrical devices or a handling (holding method) in a state assembled to the flexible aggregated wiring connector 10. May be used. In this case, the terminal portion 21 of the flexible aggregate wiring 20 may be bent and deformed.

  FIG. 8 shows an example of deflection deformation of the terminal portion 21 of the flexible aggregated wiring 20 when the extended portion 25 connected to the terminal portion 21 of the flexible aggregated wiring 20 is bent and used. FIG. 8A is a side view of the flexible aggregated wiring connector 20, and FIG. 8B is a view of the flexible aggregated wiring connector 20 as viewed from the rear, that is, (A) from the right side. In addition, the broken line in (A) represents the state where the extending part 25 of the flexible aggregated wiring 20 is not bent. In (B), the bent extended portion 25 is omitted for convenience of explanation of the bending deformation of the terminal portion 21 of the flexible aggregated wiring 20.

  As shown in FIG. 8A, when the extended portion 25 of the flexible aggregated wiring 20 is bent upward in the drawing so as to have an angle with respect to the placement surface 31, the terminal portion 21 of the flexible aggregated wiring 20. The elastic force is applied to the direction of returning the bending (lower side in the figure).

  When an elastic force is applied to return the bending in a state where the flexible aggregated wiring 20 is pressed against the cover 40, as shown in FIG. The longitudinal member 41 may be bent and deformed in a concave shape. That is, both end portions of the longitudinal member 41 of the cover 40 are locked to the protrusions 33 of the side surface 32 by the locking portion 43 of the lock arm 42, while the central portion of the longitudinal member 41 is not locked to the slider 30. In addition, the central portion of the longitudinal member 41 is bent and deformed due to insufficient rigidity due to the thin thickness. As a result, the adhesiveness between the flexible aggregated wiring 20 and the flexible aggregated wiring connector 10, that is, the adhesiveness between the flexible aggregated wiring 20 and the mounting surface 31 of the slider 30 and the cover 40 is lowered, and the electrical reliability is impaired. There is a fear.

  On the other hand, for example, by increasing the thickness of the longitudinal member 41 of the cover 40 to improve the rigidity, it is conceivable that the flexible aggregated wiring 20 does not bend and deform with respect to the pressing of the terminal portion 21. It may be difficult due to restrictions on the clearance dimension between the printed circuit board (PCB) supporting the connector 50 and other members.

  Next, the characteristic structure of the flexible concentrated wiring connector 10 of this embodiment made in view of such a point will be described with reference to FIGS. 1 and 3 to 5.

  As shown in FIG. 1, the cover 40 is formed in the shape of a thin strip of an elastically deformable material (for example, thermoplastic resin), and protrudes along the side surface 32 of the longitudinal member 41 and both ends thereof from the slider 30. It is formed with a lock arm 42. The longitudinal member 41 is formed so as to be convex toward the placement surface 31 of the slider 30, and is a concave surface of the longitudinal member 41, that is, a surface opposite to the surface facing the placement surface 31 (see FIG. 1, both ends of a straight rib 47 extending along the longitudinal direction of the longitudinal member 41 are fixed. The ribs 47 are formed integrally with the longitudinal member 41 with the same thickness as the longitudinal member 41, and are provided so as to bridge two portions in the longitudinal direction of the longitudinal member 41 warped in an arc shape with a straight plate material. ing. On both end sides along the longitudinal direction of the rib 47, rectangular windows 48 penetrating the longitudinal member 41 are formed.

  Next, an operation for assembling the cover 40 of the present embodiment to the slider 30 will be described.

  After the terminal portion 21 of the flexible aggregated wiring 20 is installed on the mounting surface 31 of the slider 30, the cover 40 is put on the terminal portion 21, and the lock arms 42 at both ends are pushed down along the side surfaces 32 of the slider 30. As a result, the cover 40 is pushed outward by the lock arm 42 along the inclination of the protrusion 33, while the long member 41 warped in a convex shape toward the placement surface 31 is formed on the terminal portion 21 of the flexible aggregated wiring 20. Pressed against the top surface. When the lock arm 42 is further pushed down, the longitudinal member 41 is elastically deformed into a flat shape along the placement surface 31 and the ribs 47 are pulled to both ends thereof.

  On the other hand, when the locking portion 43 at the lower end of the opening 44 of the lock arm 42 exceeds the lower end 36 of the projection 33, the projection 33 is inserted into the opening 44, and the pressing load is released in this state, thereby locking the opening 44. The portion 43 and the lower end 36 of the projection 33 abut, and the cover 40 is assembled to the slider 30.

  FIG. 3 shows a state where the cover 40 is assembled to the slider 30. The cover 40 is elastically deformed into a flat shape by the longitudinal member 41 pressing the terminal portion 21 of the flexible aggregated wiring 20, and the warp is corrected. FIG. 4 shows the cover 40 in a state assembled to the flexible collective wiring connector 10 of FIG. The ribs 47 are arranged along the plane of the longitudinal member 41 whose warpage has been corrected by being elastically deformed by being stretched to both ends.

  When the cover 40 is assembled to the slider 30, the longitudinal member 41 is elastically deformed flat along the mounting surface 31 of the slider 30 and the ribs 47 are elastically deformed toward both end sides thereof and are extended. The cover 40 tries to return to the original warped state by the action of the restoring force of the elastic deformation. The restoring force at this time is the center of the longitudinal member 41 in the longitudinal direction until the cover 40 changes from the state of FIG. 5A to the state of FIG. 5B and in the state of FIG. It works in the direction of the arrow (direction of the mounting surface 31) from the part. That is, the longitudinal member 41 that is warped convexly toward the placement surface 31 has a restoring force when it is elastically deformed flat along the placement surface 31, so that the terminal portion 21 of the flexible aggregated wiring 20 is placed on the placement surface 31. Further, the restoring force due to the rib 47 being pulled toward both ends acts to press the terminal portion 21 of the flexible aggregated wiring 40 against the placement surface 31 via the longitudinal member 41.

  Therefore, by using the cover 40 having the ribs 47 in this way, the restoring force due to the elastic deformation of the longitudinal member 41 is increased compared to the case of using the cover of Patent Document 2 that does not have the conventional ribs 47. The force for tightly attaching the terminal portion 21 of the flexible aggregated wiring 40 to the placement surface 31 can be dramatically increased, and as a result, the degree of adhesion of the terminal portion 21 to the placement surface 31 can be significantly improved. Further, by forming the rib 47, the restoring force due to the elastic deformation of the longitudinal member 41 can be increased without increasing the thickness of the cover 40, so that the degree of design freedom can be improved.

  According to the flexible aggregated wiring connector 10 of the present embodiment, the terminal portion 21 of the flexible aggregated wiring 20 is lifted from the mounting surface 31 due to the extended portion 25 of the flexible aggregated wiring 20 being bent. Even if the elastic force to be removed works, the terminal portion 21 is pressed by the longitudinal member 41 with a force larger than the lifting force, and the lifting is suppressed. As a result, the bending deformation of the terminal portion 21 can be suppressed, and the terminal portion 21 of the flexible aggregated wiring 20 can be brought into close contact with the placement surface 31 of the slider 30.

  Even in a normal state where the extended portion 25 of the flexible aggregated wiring 20 is not bent, the terminal portion 21 of the flexible aggregated wiring 20 is pressed by the longitudinal member 41, so that the terminal portion 21 of the flexible aggregated wiring 20 and the slider 30 are pressed. Adhesion with the mounting surface 31 can be improved. Further, since the longitudinal member 41 always presses the terminal portion 21 of the flexible aggregated wiring 20 after the flexible aggregated wiring 20 is assembled to the flexible aggregated wiring connector 10, the slider 30, the flexible aggregated wiring 20, and the cover The play between 40 can be suppressed.

  The degree of warping of the longitudinal member 41 can be appropriately selected according to the dimensions of the flexible aggregated wiring connector 10 and the flexible aggregated wiring 20.

  Further, the protrusion 33 is not limited to a beak shape, and for example, a cylinder or a prism can be selected as appropriate. In this case, the lock arm 42 can be formed so that the tip of the lock arm 42 is spread outward and the lock arm 42 is easily pushed and expanded by the protrusion 33.

  As mentioned above, although embodiment of this invention has been explained in full detail with drawing, the said embodiment is only an illustration of this invention and this invention is not limited only to the structure of the said embodiment. Needless to say, changes in design and the like within the scope of the present invention are included in the present invention.

  For example, the cover 40 adjusts the ratio of the longitudinal dimension of the rib 47 to the longitudinal dimension of the longitudinal member 41, thereby pressing the terminal portion 21 of the flexible aggregated wiring 20 against the placement surface 31, that is, the elasticity of the longitudinal member 41. The restoring force of deformation can be adjusted. As shown in FIG. 6, in the natural state, by setting the longitudinal dimension of the rib 47 to be longer than that in FIG. 1, the restoring force of the elastic deformation of the longitudinal member 41 can be weakened, and on the contrary, it is set to be short. Thereby, the restoring force by elastic deformation can be strengthened.

  In the present embodiment, an example in which one rib 47 is provided has been described, but two ribs 49 may be provided as shown in FIG. In this case, a part of the longitudinal member 41 is formed on the inner side of the two ribs 49 and warps in a convex shape toward the lower side of the drawing. Thus, the restoring force by elastic deformation can also be adjusted by adjusting the number of ribs.

DESCRIPTION OF SYMBOLS 10 Flexible concentrated wiring connector 20 Flexible concentrated wiring 25 Extension part 30 Slider 31 Mounting surface 33 Protrusion 40 Cover 41 Longitudinal member 42 Lock arm 43 Locking part 44 Opening 47 Rib 48 Window

Claims (1)

A mounting surface on which a terminal portion of the flexible aggregated wiring is installed, a base member having protrusions formed on side surfaces connected to both ends of the mounting surface, and a terminal portion of the flexible aggregated wiring mounted on the base member in front A cover member that presses against the mounting surface,
The cover member is provided with a longitudinal member extending in the arrangement direction of the terminals of the flexible aggregated wiring, and protruding from the both ends of the longitudinal member in a direction along the side surface of the base member, and an opening that can be locked to the projection. An engagement member formed,
A flexible aggregated wiring connector used when inserting the terminal of the flexible aggregated wiring into a connector of a connection partner,
The longitudinal member is warped so as to be convex toward the placement surface, and extends in the longitudinal direction of the longitudinal member so that both ends are fixed to the concave surface of the longitudinal member. Flexible integrated wiring connector with ribs.

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