JPH0626178U - Multi-pole flat type electric wire - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to completely prevent adverse effects on the terminal part when inserting and removing it from the connector, and it is possible to clearly confirm the response when inserting it into the connector. ,
It is an object of the present invention to provide a multi-pole flat type electric wire that can prevent an imperfect connection. [Structure] An engaging concave portion 9 and a convex portion 8 for engaging with an engaging protrusion of a connector are sequentially formed toward a tip end on a side end portion 5 of a terminal portion 4 of a multipolar flat type electric wire 1 so that the convex portion is A multi-pole flat type electric wire characterized in that an elongated hole 11 for imparting elastic force in the width direction of the terminal portion 4 is provided near the inside of the portion 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a multi-pole flat type electric wire such as a flexible flat cable or a flexible printed circuit, and more particularly to a lock structure of a multi-pole flat type electric wire and a connector.

[0002]

[Prior art]

 Conventionally, as a locking structure for this kind of multi-pole flat type electric wire and the connector, there is one disclosed in Japanese Utility Model Laid-Open No. 62-26882. That is, according to the present invention, as shown in FIGS. 8 and 9, in a multi-pole flat type electric wire 1, a plurality of flat plate conductors 3 are arranged in parallel between upper and lower strip-shaped films 2 and an end portion of the single-sided film 2 is predetermined. The terminal portion 4 is formed by peeling off the flat conductor 3 to expose the flat conductor 3, and the connector 5 into which the multipolar flat wire 1 is inserted and connected has a plurality of terminals electrically connected to the terminal portion 4. Book connectors 6 are stored in parallel. In order to prevent the multi-pole flat electric wire 1 from coming off when the connector 5 is fitted, the terminal portion 4 of the multi-polar flat electric wire 1 has arcuate notches at the left and right end portions 7 in the longitudinal direction. A portion 8 is formed, and a circular arc-shaped protrusion 9 that can be fitted into the notch 8 is formed inside the connector 5.

[0003]

[Problems to be solved by the device]

 Thus, when the multipolar flat type electric wire 1 is inserted into the connector 5, the side end portion 7a of the multipolar flat type electric wire 1 located in front of the cutout portion 8 of the terminal portion 4 is a protrusion of the connector 5. After being forcibly deformed inward with respect to each other by 9, the notch 8 of the multi-pole flat electric wire 1 fits into the projection 9 of the connector 5. Therefore, repeated insertion and removal of the multi-pole flat type electric wire 1 damages and deforms the side end portion 7a and the cutout portion 8 of the terminal portion 4 and lowers the retaining prevention effect. There is a risk that the flat conductor 3 and the connector 6 of the connector 5 may cause contact failure due to damage caused by the damage. Also, if the notch 8 of the multi-pole flat type electric wire 1 is damaged and changed, it becomes impossible to clearly confirm the response of whether or not the two are securely fitted at the time of insertion. There are various problems such as inability to contact due to incomplete insertion of the.

[0004]

[Means for solving problems]

 The present invention has been made to solve the above-mentioned problems of the related art, and prevents the multi-pole flat wire from coming off the connector and engaging recesses of the multi-pole flat wire during insertion. The purpose of the present invention is to provide a product in which the response of the connector and the engaging protrusion of the connector can be clearly checked at all times, and the gist thereof is the connector at the side end of the terminal part of the multi-pole flat wire. When the engaging concave portion and the convex portion that engage with the engaging projection of are sequentially formed toward the tip, a long hole is provided near the inner side of the convex portion for applying elastic force in the width direction of the terminal portion. And a multipolar flat type electric wire characterized in that a long groove for imparting elastic force in the width direction of the terminal portion is provided near the inside of the convex portion from the tip of the terminal portion. On the wire.

[0005]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in FIGS. 1 is a perspective view of a multi-pole flat wire according to the present invention, FIG. 2 is a plan view of the same multi-pole flat wire with a part cut away, and FIG. 3 is II of FIG. -II sectional view, (a), (b) and (c) of FIG. 4 are explanatory views of the action of the connection process between the multi-pole flat type electric wire and the connector, and FIG. Fig. 6 is a plan view showing a part of the same multi-pole flat wire when the connector is connected, and (a) and (b) of Fig. 7 show the process of connecting the same multi-pole flat wire and the connector. FIG.

In FIG. 1 to FIG. 5, reference numeral 1 denotes a multi-pole flat type electric wire, in which a plurality of flat plate conductors 3 are arranged in parallel between upper and lower strip-shaped films 2 and 2, and an end of a single-sided film 2 is provided. The portion is separated by a predetermined length to expose the flat conductor 3, and this is used as the terminal portion 4.

Reference numeral 5 denotes an end portion on the left and right in the longitudinal direction of the terminal portion 4 of the multipolar flat electric wire 1, and the side end portion 5 is directed rearward from the front end portion 6 of the terminal portion 4 in order to prevent the side portion from coming off. Then, the insertion notch 7, the protrusion 8 and the engaging recess 9 are sequentially provided, and the corners between the insertion notch 7 and the front end 6 are provided with a chamfer 10 for facilitating the insertion. Reference numeral 11 denotes an elongated hole that extends rearward from the front end portion 6 of the terminal portion 4 and is formed inside the vicinity of the convex portion 8. By the elongated hole 11, the width direction of the terminal portion 4 in the convex portion 8 is formed. This facilitates elastic deformation to. The width between the crests 8a, 8a of the convex portion 8 is set to be the same as the width between the left and right end portions 5, 5.

Reference numeral 12 is a connector into which the multi-polar flat electric wire 1 is inserted and connected. Inside the connector 12, a slit 13 into which the terminal portion 4 is inserted is formed, and inside the slit 13. A plurality of connectors 14 electrically connected to the flat plate conductor 3 of the terminal portion 4 are separately housed therein. This connector 14 is of a swing flex type in which the terminal portion 4 is elastically contacted in a sandwiched state, and the rear half of the lower connector 14a, which is directly electrically connected to the plate conductor 3 of the terminal portion 4, is from the rear surface of the connector 12. It hangs down to form the terminal portion 14b. In addition, the left and right inner side walls of the slit 13 are provided with engaging projections 15 of the same shape that can be engaged with the engaging recesses 9, and the insertion side of the engaging projections 15 is formed on the inclined surface 15a. Has been done.

Next, the state of inserting the multipolar flat type electric wire 1 into the connector 12 will be described with reference to (a), (b) and (c) of FIG. With the plate conductor 3 of the terminal portion 4 of No. 1 facing downward, the terminal portion 4 of the multi-pole flat electric wire 1 is inserted into the slit 13 of the connector 12 as shown in FIG. And the multi-pole flat type electric wire 1 is pushed in, the inclined surface of the insertion notch 7 of the terminal portion 4 slides on the inclined surface 15a of the engaging projection 15 formed on the left and right inner side walls of the slit 13. The convex portion 8 of the terminal portion 4 gets over the engaging projection 15 of the slit 13 after being pushed inward. At this time, since the elongated hole 11 is formed inside the vicinity of the convex portion 8, the convex portion 8 is easily elastically deformed inward by the deformation of the elongated hole 11, and the remaining terminal portion 4 is affected. Move without giving.

When the convex portion 8 gets over the engaging protrusion 15 of the slit 13, the convex portion 8 elastically restores to its original position as shown in FIG. The engaging recess 9 of the terminal portion 4 is engaged with the engaging protrusion 15 of the connector 12 to prevent the connector 12 from coming off. In this case, the engagement concave portion 9 of the multipolar flat type electric wire 1 and the projection portion 15 of the connector 12 are engaged with each other by elastic restoration of the projection portion 8 when the projection portion 8 gets over the engagement projection 15 of the slit 13. Since there is a response at times, it is possible to confirm the completion of the engagement. Further, even when the multipolar flat wire 1 is removed from the connector 12, the convex portion 8 is elastically deformed and moved inward by the elongated hole 11 as in the case of the above insertion, so that the remaining terminal portion 4 is removed. Can be removed without affecting the

5 to 7 show another embodiment of the present invention, in which the terminal portions 4 of the multi-pole flat type electric wire 1 are attached to the left and right longitudinal end portions 5 in the same manner as in the above embodiment. Each of the fitting recesses 9 and the projection 8 is provided. However, since the projection 8 is located at the front end 6 of the terminal portion 4, the front end 6 is located near the inside of the projection 8. Since the convex portion 8 is elastically deformed and moved inward by elastic deformation of the long groove 16, as shown in (a) and (b) of FIG. It can be easily inserted and removed without affecting 4. The other points are the same as in the above embodiment. In addition, although the flat conductor 3 of the terminal portion 4 is exposed on only one side in the multipolar flat type electric wire 1 of each of the above-described embodiments, the present invention is not limited to this, and the same effect can be obtained when exposed on both sides. Of course to play.

[0012]

[Effect of device]

 As described above, the multi-pole flat electric wire according to the present invention is such that the engaging concave portion and the convex portion that engage with the engaging projections of the connector are sequentially oriented toward the tip at the side end portion of the terminal portion of the multi-polar flat electric wire. When formed, a long hole is provided near the inside of the convex portion to give elastic force in the width direction of the terminal portion, and elastic force in the width direction of the terminal portion is provided near the inside of the convex portion. Since the long groove to be added is provided from the tip of the terminal, it is possible to completely prevent the adverse effect on the terminal when inserting and removing the multi-pole flat wire from the connector. There are various effects such as the response when inserting the flat type electric wire into the connector can be clearly confirmed, and incomplete connection can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a multi-polar flat wire according to the present invention.

FIG. 2 is a plan view in which a part of the multipolar flat type electric wire and a connector are cut away when the connector is connected.

3 is a sectional view taken along line II-II in FIG.

FIG. 4 is an operation explanatory view of a connecting process of the multipolar flat type electric wire and the connector.

FIG. 5 is a perspective view of a multi-polar flat wire according to another embodiment.

FIG. 6 is a plan view in which a part of the multi-pole flat electric wire and the connector are cut away when the connector is connected.

FIG. 7 is an operation explanatory view of a connecting process between the multipolar flat type electric wire and the connector.

FIG. 8 is a perspective view of a conventional multi-pole flat wire.

FIG. 9 is a plan view in which a part of the multipolar flat type electric wire and a connector are cut away when the connector is connected.

[Explanation of symbols]

 1 multi-pole flat type electric wire 2 strip film 3 plate conductor 4 terminal part 5 side end part 6 front end part 7 insertion notch part 8 convex part 9 engaging concave part 11 long hole 12 connector 13 slit 14 connecting terminal 15 engaging protrusion

Claims (2)

[Scope of utility model registration request] 1. An inner side of the convex portion is formed by sequentially forming an engaging concave portion and a convex portion, which engage with an engaging protrusion of a connector, toward a tip end at a side end portion of a terminal portion of a multipolar flat type electric wire. A multi-pole flat type electric wire, characterized in that an elongated hole is provided in the vicinity thereof so as to impart elastic force in the width direction of the terminal portion. 2. An inner side of the convex portion is formed by sequentially forming an engaging concave portion and a convex portion, which engage with the engaging protrusion of the connector, toward the tip at the side end portion of the terminal portion of the multipolar flat type electric wire. A multi-pole flat type electric wire, characterized in that a long groove is provided in the vicinity of the terminal portion so as to apply an elastic force in the width direction from the tip of the terminal portion.