JP2007234567A - Perpendicular holding structure for conductive wire and connector using this structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure holding a conductive wire 12 perpendicular by low cost and perpendicular hole processing and to provide a connector 10 using the structure. <P>SOLUTION: A plurality of inserting holes 36 into which a plurality of conductive wires 12 can be entered are provided on a plastic sheet 34 in the perpendicular holding structure for the conductive wire 12. In addition, projections 38 are provided over all periphery on one end side of interior walls inside the inserting holes 36 on either one surface side of a front or a back surface. Recesses 40 are formed in central parts of the inserting holes 36 which are provided next to each other by layering two pieces of the same plastic sheet 34 so that the front and the back are reversed. The conductive wires 12 are held by the projections 38 on both end sides on the interior wall surfaces in the inserting holes 36 of the two pieces of layered plastic sheets 34. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for vertically holding a pin-shaped conductive wire, and relates to a method for manufacturing a plastic sheet used in the structure, and a connector using the structure and the plastic sheet manufactured by the method. .

Conventionally, when pin-shaped conductive wires are held vertically, the conductive wire is inserted and held in a hole as vertical as possible by drilling or laser processing, and the conductive wires are inserted into the processed holes. It was done by inserting.
There is no patent document etc. that should be mentioned in particular.

In recent years, as electric and electronic devices have become smaller in size, connectors have also been reduced in size and pitch. As miniaturization and narrow pitch progress, components (conductive wires, etc.) used for devices and connectors will be miniaturized, and the diameter of holes for holding conductive wires will naturally have to be reduced.
Further, if the hole cannot be machined vertically, the conductive wire cannot be inserted, and the conductive wire cannot be held vertically, leading to poor connection, There was a problem that said it would not lead to miniaturization.
Furthermore, many holes are required to hold many of the conductive wires, but laser processing and drilling process holes one by one, leading to increased costs. there were.
In the case of drilling, there is a chisel edge at the tip of the drill (two angles of the flat part of the tip of the tip), so even if trying to make a vertical hole, if the drill diameter is small, there will be slight scratches or irregularities on the surface The cutting edge escapes (bends) and the hole position deviates from a predetermined position, and a vertical hole cannot be formed.
In the case of laser processing, a vertical hole can be formed, but the cost is increased due to the above reason and the processing itself being expensive.

  The present invention has been made in view of the above-described conventional problems, and is intended to provide a low-cost structure capable of performing vertical hole drilling and holding a conductive wire vertically and a connector using the structure. It is.

  The vertical holding structure for the conductive wire 12 is provided with a plurality of insertion holes 36 through which the plurality of conductive wires 12 enter the plastic sheet 34 and at one end of the inner wall surface in the insertion hole 36 on either the front or back side. A concave portion 40 is formed in the central portion of the insertion hole 36 which is formed by providing a convex portion 38 on the entire circumference and overlapping two identical plastic sheets 34 so as to be opposite to each other. This can be achieved by holding the conductive wire 12 with the convex portions 38 on both ends of the inner wall surface in the insertion hole 36 of the combined plastic sheet 34.

In recent years when the pitch is further narrowed, the pitch between the insertion holes 36 in which the conductive wires 12 are held is naturally narrowed. The size of the insertion hole 36 is smaller than that of the conductive wire 12 in order to hold the conductive wire 12. For this reason, if the conductive wire 12 is held around the entire circumference (entire circumference) of the insertion hole 36, there is a press-fitting allowance in the entire circumferential direction. The sheet 34 is warped or undulated without resisting the spreading stress.
Therefore, it is desirable to provide at least two or more notches 37 on the convex portion 38 provided on the entire circumference of one end side of the inner wall surface of the insertion hole 36.

  In the connector 10 for the above purpose, a plurality of the conductive wires 12 are inserted into the insertion hole 36 of the one plastic sheet 34 from the opposite side where the convex portions 38 are provided, and then the convex portions 38 are formed. The other plastic sheet 34 is inserted into the conductive wire 12 from the opposite side where it is provided, so that the same plastic sheet 34 is overlapped so that the same plastic sheet 34 is opposite to the front and back. The conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface of the insertion hole 36, and the conductive wire 12 is provided on either side or one side of the two plastic sheets 34 that are overlapped. The elastic body 16 is mounted, and has a through-hole 26 into which the conductive wire 12 is inserted on both sides or one side and a contact 20 that comes into contact with a counterpart and a front side. Is connected to the conductive wire 12 mounting a flexible printed circuit board 14 (hereinafter referred to as "FPC").

  It is desirable to provide at least two or more notches 37 on the convex portion 38 provided on the entire circumference of one end of the inner wall surface in the insertion hole 36 of the plastic sheet 34 used for the connector 10.

As a vertical holding structure of the conductive wire 12, the conductive wire 12 is inserted into the insertion hole 36 of one plastic sheet 34 from the opposite side where the convex portion 38 is provided, and then the convex portion 38. The other plastic sheet 34 is inserted into the conductive wire 12 from the opposite side where the same plastic sheet 34 is placed so that the same plastic sheet 34 is turned upside down. The conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface in the insertion hole 36.
Further, as the vertical holding structure of the conductive wire 12, the plastic sheet 34 is masked so that a predetermined conductive wire insertion hole diameter can be formed on one surface side of the plastic sheet 34, and the entire other surface side is masked. After performing the etching process, an etching process is performed, and by the etching process, a convex portion 38 is provided on the other surface side of the insertion hole 36 on the entire circumference of one end of the inner wall surface so that the same plastic sheet 34 is turned upside down. It is good to be.

  The plastic sheet 34 is manufactured by performing masking so that the predetermined conductive wire insertion hole diameter can be formed on either the front or back side of the plastic sheet 34 and masking the entire surface of the other side. Etching is performed, and a convex portion 38 is provided on the other side of the insertion hole 36 on one end side of the inner wall surface by the etching process. In particular, when the diameter between the protrusions 38 is 1 mm or less, it is desirable to form the protrusions 38 and the notches 37 by etching.

As a countermeasure when the vertical position accuracy of the conductive wire 12 is further required, it is necessary to increase the thickness of the plastic sheet 34. As a manufacturing method of the plastic sheet 34, the etching process is performed as described above. Since the insertion hole 36 is formed by this, the processing time becomes longer and the cost increases when the thickness is increased, and at the same time, the variation of the tip diameter of the convex portion 38 of the insertion hole 36 that holds the conductive wire 12 varies. As a result, the holding force of the conductive wire 12 varies. As a result, the vertical holding accuracy of the conductive wire 12 is lowered.
Therefore, it is desirable to arrange a spacer 35 having a required thickness between the two stacked plastic sheets 34, and the two stacked plastic sheets 34 having the required thickness of spacers 35 disposed on the connector 10. It is desirable to use it. The required thickness here refers to changing the thickness between the two stacked plastic sheets 34 in accordance with the required vertical accuracy of the conductive wire 12 and the total required total thickness.

As is clear from the above description, the following excellent remarkable effects can be obtained by using the conductive wire vertical holding structure, the plastic sheet manufacturing method, and the connector as in the present invention.
(1) In the conductive wire vertical holding structure according to claim 1, a plurality of insertion holes 36 for receiving the plurality of conductive wires 12 are provided in the plastic sheet 34, and the inside of the insertion hole 36 is provided on either one of the front and back surfaces. A convex portion 38 is provided on the entire circumference of one end of the inner wall surface, and a concave portion 40 is formed in the central portion of the insertion hole 36 continuously provided by overlapping two identical plastic sheets 34 so as to be opposite to each other. Since the conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface in the insertion hole 36 of the plastic sheet 34 that is overlapped, the conductive wire 12 is inserted into the insertion hole 36 of the plastic sheet 34. The conductive wires 12 can be reliably held vertically because they are held at both ends of the inner wall surface.
(2) In the vertical holding structure of the conductive wire according to the second aspect, at least two or more cutout portions 37 are provided on the convex portion 38 provided on the entire circumference of one end side of the inner wall surface of the insertion hole 36. Further, the pitch of the insertion holes 36 can be reduced and the number of cores can be reduced, and the plastic sheet 34 is not deformed, so that the conductivity 12 can be securely held vertically.
(3) In the connector according to claim 4, a plurality of the conductive wires 12 are inserted into the insertion hole 36 of one sheet of the plastic sheet 34 from the opposite side where the convex portion 38 is provided, and thereafter The other plastic sheet 34 is inserted into the conductive wire 12 from the opposite side where the convex portion 38 is provided, so that the same plastic sheet 34 is overlapped so that the front and back are reversed. The conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface in the insertion hole 36 of the plastic sheet 34, and the conductive wire 12 is formed on both sides or one side of the plastic sheet 34 that is overlapped. When the elastic body 16 having a hole to be inserted is attached and the through-hole 26 into which the conductive wire 12 is inserted and the contact 20 in contact with the mating object are provided on both sides or either side. In addition, since the FPC 14 connected to the conductive wire 12 is mounted, a vertical hole can be reliably manufactured, the conductive wire 12 can be easily held vertically, and a small size and a narrow pitch are possible and stable. A connection connector can be obtained.
(4) Since at least two notches 37 are provided on the convex portion 38 provided on the entire circumference of one end of the inner wall surface in the insertion hole 36 of the plastic sheet 34 used for the connector 10. Further, the pitch of the insertion holes 36 can be reduced and the number of cores can be reduced, and the plastic sheet 34 is not deformed, so that the conductivity 12 can be securely held vertically.
(5) In the vertical holding structure of the conductive wire, the conductive wire 12 is inserted into the insertion hole 36 of one plastic sheet 34 from the opposite side where the convex portion 38 is provided, and then the convex portion The other plastic sheet 34 is inserted into the conductive wire 12 from the opposite side where 38 is provided, so that the same plastic sheet 34 is overlapped so that the same plastic sheet 34 is turned upside down. Since the conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface in the insertion hole 36 of the sheet 34, the method for holding the conductive wire 12 is simple, and the conductive wire 12 is attached to the plastic sheet 34. Since the inner wall surfaces of the insertion hole 36 are held at both ends, the conductive wire 12 can be reliably held vertically.
(6) The vertical holding structure of the conductive wire is masked so that a predetermined diameter of the conductive wire insertion hole can be formed on either the front or back side of the plastic sheet 34, and the entire surface on the other side is masked. After that, etching is performed, and by this etching process, a convex portion 38 is provided on the other side of the insertion hole 36 on the entire circumference of one end of the inner wall surface so that the same plastic sheet 34 is turned upside down. Therefore, the processing of the plastic sheet 34 is easy and the method for holding the conductive wire 12 is also simple, and the conductive wire 12 is held at both ends of the inner wall surface in the insertion hole 36 of the plastic sheet 34. Therefore, the conductive wire 12 can be securely held vertically.
(7) Apply masking so that a predetermined conductive wire insertion hole diameter can be formed on one side of the front or back side of the plastic sheet 34, and perform etching after masking the entire surface of the other side, Since the convex portion 38 is provided on the other side of the insertion hole 36 on one end side of the inner wall surface by the etching process, a large number of holes can be processed at one time, which leads to low cost and high cost. Therefore, a vertical hole can be reliably manufactured, and the conductive wire 12 can be easily held vertically.
(8) In the conductive wire vertical holding structure according to the third aspect, since the spacer 35 having a required thickness is disposed between the two stacked plastic sheets 34, the conductive wire holding sheets 34 on the front and back sides are thin. Since the processing depth becomes shallow, the tip diameter of the convex portion 38 of the insertion hole 36 for holding the conductive wire 12 can be processed without variation, and the holding force of the conductive wire 12 also varies. Therefore, the conductive material 12 can be securely held vertically, and the plastic sheet 34 can be processed in a short time, which does not lead to an increase in cost.
(9) Between the two overlapping plastic sheets 34 used for the connector 10, a spacer having a required thickness is arranged according to the required vertical accuracy of the conductive wire 12 and the required total thickness. Therefore, since the tip diameter of the convex portion 38 of the insertion hole 36 for holding the conductive wire 12 can be processed without variation, the holding force of the conductive wire 12 does not vary, and the conductivity 12 can be reliably secured. Since it can be held vertically and the plastic sheet 34 can be processed in a short time, the cost is not increased.

  Based on FIGS. 1 to 6, the structure for vertically holding the conductive wire of the present invention, the method of manufacturing the plastic sheet used in the structure, and the connector using the structure and the plastic sheet manufactured by the method will be described. . In this embodiment, the connector 10 using the electrical contacts will be described. FIG. 1A is a structural diagram in which conductive lines are vertically held by two plastic sheets, and FIG. 1B is a structure in which conductive lines are vertically held by two plastic sheets when the shape of the convex portion is changed. FIG. FIG. 2 is a drawing for explaining a plastic sheet manufacturing method. FIG. 3 is a view for explaining how to assemble when the conductive wire is held vertically by two plastic sheets. FIG. 4 is a plan view of the connector and a cross-sectional view of the connector. FIG. 5A is an enlarged plan view of a partial connector, and FIG. 5B is an AA enlarged cross-sectional view of FIG. FIG. 6 is a view for explaining the shape of the notch, and FIG. 7 is a structural view in which spacers are arranged between two plastic sheets to widen the conductive line holding interval and hold the conductive lines vertically.

First, the manufacturing method of the plastic sheet 34 is demonstrated based on FIG.
First, as shown in FIG. 2 (A), an alkali-resistant mask is formed so that a predetermined conductive wire insertion hole diameter can be formed on either one of the front and back sides of the plastic sheet 34, and on the other side. Apply alkali-resistant masking to the entire surface.
Second, as shown in FIG. 2B, alkaline etching is performed from the side where the conductive wire insertion hole diameter is formed, and the insertion hole 36 penetrating the plastic sheet 34 is formed. In forming the insertion hole 36, a convex portion 38 is provided on the other surface side (the side opposite to the diameter of the conductive wire insertion hole) on one end side of the inner wall surface.
In particular, when the diameter between the protrusions 38 is 1 mm or less, it is desirable to form the protrusions 38 and the notches 37 by etching.

Next, a vertical holding structure for the conductive wire 12 will be described with reference to FIG. As shown in FIG. 1, the plastic sheet 34 is provided with a plurality of insertion holes 36 for receiving a plurality of conductive wires 12, and on one side of both the front and back surfaces on the entire circumference of one end side of the inner wall surface in the insertion hole 36. Protruding portion 38 is provided, and the same plastic sheet 34 is overlapped so that the front and back sides thereof are overlapped with each other. The conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface in the insertion hole 36 of the sheet 34.
The sizes of the insertion hole 36 and the convex portion 38 are appropriately designed according to the size of the conductive wire 12 entering the insertion hole 36 so that the conductive wire 12 can be held by the convex portion 38. In the present embodiment, the diameter of the convex portion 38 provided on the entire circumference is made smaller than the diameter of the conductive wire 12 by about 0.01 to 0.03 mm.

In the vertical holding structure of the conductive wire 12, the conductive wire 12 is inserted into the insertion hole 36 of the one plastic sheet 34 from the opposite side where the convex portion 38 is provided, and then the convex portion 38. The other plastic sheet 34 is inserted into the conductive wire 12 from the opposite side where the same plastic sheet 34 is placed so that the same plastic sheet 34 is turned upside down. The conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface in the insertion hole 36.
In addition, the vertical holding structure of the conductive wire 12 is masked so that a predetermined diameter of the conductive wire insertion hole can be formed on either the front or back side of the plastic sheet 34, and the entire surface on the other side is masked. After that, etching is performed, and by this etching process, a convex portion 38 is provided on the other side of the insertion hole 36 on the entire circumference of one end of the inner wall surface so that the same plastic sheet 34 is turned upside down. ing.

  Based on FIG. 6, the shape which provided the notch part 37 in the convex part 38 provided in the one end side perimeter of the inner wall face of the said insertion hole 36 is demonstrated. The notch 37 is provided to prevent the plastic sheet 34 from being deformed even when the interval between the insertion holes 36 is narrow (the conductive wire 12 is narrowed) and multi-core. is there. That is, when the conductive wire 12 is held in the insertion hole 36 of the plastic sheet 34, the spreading stress is dispersed. Therefore, it is necessary to provide at least two notches 37 as the quantity. In FIG. 6A, four are provided at intervals of 90 degrees, (B) and (C) are provided at intervals of 72 degrees, and (D) and (E) are provided at intervals of 45 degrees. (B) and (E) have the convex portion 38 (holding portion) as a point, and (C) and (D) have the convex portion 38 (holding portion) as a surface. In this embodiment, as the shape of the cutout portion 37, a substantially square shape as shown in (A) and a substantially triangular shape as shown in (B) to (E) are given. Shape may be sufficient. The cutout portion 37 may have any size as long as it does not contact the conductive wire 12. However, the size and shape of the notch 37 is appropriately designed in consideration of its role, the interval between the conductive wires 12 (the insertion holes 36), the strength of the plastic sheet 34 depending on the interval, and the like. The relationship between the diameter (X) of the conductive wire 12, the tip diameter (Y) of the convex portion 38 of the insertion hole 36, and the diameter (Z) of the notch portion 37 is Y <X <Z. In this embodiment, Y is 386 μm, X is 400 μm, and Z is 410 μm.

Next, an assembly method when the conductive wire 12 is held vertically by two plastic sheets 34 will be described with reference to FIG.
First, as shown in FIG. 3A, in the insertion hole 36 of one sheet of the plastic sheet 34, the conductive wire 12 is moved in the direction of the arrow "A" from the opposite side where the convex portion 38 is provided. insert.
Second, as shown in FIG. 3B, the other plastic sheet 34 is inserted into the conductive wire 12 in the direction of the arrow “B” from the opposite side where the convex portion 38 is provided.
By passing through the first and the second, the convex portions 38 on both ends of the inner wall surface in the insertion hole 36 of the plastic sheet 34 in which two identical plastic sheets 34 are overlapped so that the front and back sides are reversed. The conductive wire 12 is held.

  As a countermeasure when the vertical position accuracy of the conductive wire 12 is further required, it is necessary to increase the thickness of the plastic sheet 34. In such a case, if the plastic sheet 34 is simply thickened and the insertion hole 36 is formed by etching, the insertion time for holding the conductive wire 12 is increased while processing time is increased and costs are increased. The variation in the tip diameter of the convex portion 38 of the hole 36 becomes large, and the holding force of the conductive wire 12 also varies. As a result, the vertical holding accuracy of the conductive wire 12 is lowered. Therefore, a spacer 35 having a required thickness is disposed between the two plastic sheets 34 that are overlapped. The thickness of the spacer 35 is appropriately designed according to the required vertical accuracy of the conductive wire 12 and the required total total thickness, and the portion of the spacer 35 in which the conductive wire 12 enters is not in contact with the conductive wire 12. It is designed appropriately in consideration of the pitch of the conductive material 12 and the like.

Finally, the connector 10 using the structure and the plastic sheet 34 manufactured by the method will be described. The connector 10 according to one embodiment includes at least an elastomer 16, a conductive wire 12, an FPC 14 layer, and a plastic sheet 34.
The connector 10 inserts the plurality of conductive wires 12 into the insertion hole 36 of the single plastic sheet 34 from the opposite side where the convex portion 38 is provided, and the convex portion 38 is provided thereafter. The other plastic sheet 34 is inserted into the conductive wire 12 from the opposite side, so that the same plastic sheet 34 is placed so that the same plastic sheet 34 is turned upside down. The conductive body 12 is held by the convex portions 38 on both ends of the inner wall surface in the hole 36, and an elastic body having a hole into which the conductive line 12 enters on either side or one side of the plastic sheet 34 that is overlapped. 16 and has a through hole 26 into which the conductive wire 12 is inserted on both sides or either side and a contact point that contacts a mating member and the conductive wire 1. Wearing the FPC14 connected to the.

First, the plastic sheet 34 will be described. The manufacturing method of the plastic sheet 34 is as described above, and is an electrically insulating plastic, which is manufactured by a known technique of injection molding. This material is appropriately selected in consideration of dimensional stability, workability, cost, and the like. However, generally, polybutylene terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof can be used.
A single plastic sheet 34 is provided with a plurality of insertion holes 36 for receiving a plurality of conductive wires 12, and protrudes to the entire circumference of one end of the inner wall surface in the insertion hole 36 on either the front or back side. A portion 38 is provided. A concave portion 40 is formed in the central portion of the insertion hole 36 which is continuously provided by overlapping two identical plastic sheets 34 so as to be opposite to each other, and the insertion hole 36 of the plastic sheet 34 is overlapped. The conductive wire 12 is held by the convex portions 38 on both ends of the inner wall surface.
It is desirable to provide at least two or more notches 37 on the convex portion 38 provided on the entire circumference of one end of the inner wall surface of the insertion hole 36 of the plastic sheet 34. In addition, when it is desired to increase the thickness of the plastic sheet 34 depending on the required vertical accuracy of the conductive wire 12 and the total required total thickness, the required thickness is set between the two stacked plastic sheets 34. It is desirable to arrange the spacer 35.

  Next, the structure of the electrical contact 20 will be described with reference to FIG. The electrical contact 20 is a portion that comes into contact with a counterpart, and is formed by protruding on a copper foil with plating or a metal ball.

  Next, the FPC 14 layer will be described. The FPC 14 is provided with a plurality of electrical contacts 18 at positions corresponding to the contacts of the mating connector. The electrical contact 18 is provided with a hemispherical electrical contact 20 to optimize the shape of the contact 20 and facilitate contact. In the central portion of the FPC 14, a recess or a through groove 42 (including a through hole) is provided as a relief of the capacitor, IC chip, resistance, etc. at a position corresponding to the capacitor, IC chip, resistance, etc. protruding from the contact of the mating connector. Is provided. The size of the concave portion or the through groove 42 may be designed as appropriate in consideration of the miniaturization of the connector, the positional accuracy, etc., as long as it can escape the capacitor, IC chip, resistance, etc. protruding from the contact of the mating connector.

  A substantially U-shaped slit 22 is provided around the electrical contact 18 of the FPC 14. The slit 22 is for sliding the electrical contact 18 of the connector 10 by the elasticity of the elastomer 16 when connected to the contact of the mating connector. The size of the slit 22 is appropriately designed in consideration of such a role and the miniaturization of the connector 10. As shown in FIG. 4, the electrical contact 18 is connected to the through hole 26 by a conductor portion, and the through hole 26 is a portion connected to the conductive wire 12. The size of the through-hole 26 is only required as long as the conductive wire 12 is inserted and can be connected by soldering or the like, and is appropriately designed in consideration of the miniaturization of the connector 10 and the strength and connectivity of the conductive wire 12.

  Next, the conductive wire 12 will be described. The conductive wire 12 has a substantially columnar shape, and has two stages, with both ends having a small diameter and a center having a large diameter. The conductive wire 12 is made of metal, and is formed by cutting a metal having good conductivity characteristics, for example, a brass rod-like body into a predetermined size and further reducing both end portions to a smaller diameter. Both end portions are portions that enter the through hole 26, and the diameters of both end portions are appropriately designed so as to enter the through hole 16 and be connected by soldering. The diameter of the central portion is a portion embedded in the elastomer 16 and is appropriately designed in consideration of miniaturization, narrow pitch, and conductivity of the connector 10. The length of each diameter portion is appropriately designed in consideration of the thickness of the FPC 14 and the thickness of the elastomer 16.

  Finally, the elastomer 16 as an elastic body will be described. The elastomer 16 is provided with a fitting hole 28 for inserting the conductive wire 12, and the size of the fitting hole 28 may be such that the conductive wire 12 can be inserted, and the holding force of the conductive wire 12 is taken into consideration. And design accordingly. In this embodiment, the diameter is about 0.02 mm smaller than the diameter of the central portion of the conductive wire 12. Moreover, in order to prevent the curvature of the elastomer 16 by the elastomer 16 covering the shoulder part of the conductive wire 12 at both ends of the insertion hole 28, it is desirable to provide a recess 32. The elastomer 16 is made of silicon rubber or fluorine rubber.

  As an application example of the present invention, the present invention relates to a structure that is used in a connector 10 that is inserted between a circuit board and an electronic component, and that specifically holds a pin-shaped conductive wire 12 vertically.

(A) It is a structural diagram which hold | maintains a conductive wire perpendicularly with two plastic sheets. (B) It is a structural diagram which hold | maintains a conductive wire perpendicularly with two plastic sheets at the time of changing a convex part shape. It is drawing explaining the manufacturing method of a plastic sheet. It is drawing explaining the assembly method in the case of hold | maintaining a conductive wire perpendicularly with two plastic sheets. It is the top view of a connector, and a cross-sectional view of a connector. (A) It is an enlarged plan view of a partial connector. (B) It is an AA expanded cross-sectional view of (A). It is drawing explaining the shape of a notch part. FIG. 3 is a structural diagram in which spacers are arranged between two plastic sheets to widen the conductive line holding interval and hold the conductive lines vertically.

Explanation of symbols

10 Connector 12 Conductive Wire 14 FPC (Flexible Printed Circuit Board)
16 Elastomer (elastic body)
DESCRIPTION OF SYMBOLS 18 Electrical contact 20 Electrical contact 22 U-shaped slit 24 Conductor part 26 Through hole 28 Insertion hole 30 Shoulder part 32 Indentation part 34 Plastic sheet 35 Spacer 36 Insertion hole 37 Notch part 38 Convex part 40 Concave part 42 Through groove

Claims (8)

A plurality of insertion holes for receiving a plurality of conductive wires are provided in the plastic sheet, and a convex portion is provided on the entire circumference of one end of the inner wall surface in the insertion hole on either one of the front and back surfaces, and the same plastic sheet is placed on the front and back sides. A concave portion is formed in the central portion of the insertion hole continuously provided by overlapping two sheets so as to be opposite to each other, and the convex portions on both ends of the inner wall surface in the insertion hole of the plastic sheet stacked in two sheets A structure for vertically holding conductive lines, characterized by holding conductive lines. 2. The vertical holding structure for a conductive wire according to claim 1, wherein at least two notches are provided on a convex portion provided on the entire circumference of one end side of the inner wall surface of the insertion hole. 3. The conductive wire vertical holding structure according to claim 1, wherein when the diameter between the protrusions is 1 mm or less, the protrusions and the notches are formed by etching. 4. The structure for vertically holding conductive lines according to claim 1, wherein a spacer having a required thickness is disposed between the two plastic sheets superposed on each other. A plurality of the conductive wires are inserted into the insertion hole of one sheet of the plastic sheet from the opposite side where the convex portion is provided, and then the other sheet is inserted from the opposite side where the convex portion is provided. By inserting a plastic sheet into the conductive wire, the two conductive sheets are overlapped with each other so that the same plastic sheet is turned upside down. A through body in which an elastic body having a hole into which the conductive wire enters is attached to both sides or one side of the two plastic sheets stacked, and the conductive wire is inserted to both sides or one side. A connector comprising a flexible printed circuit board (FPC) that has a hole and a contact point that contacts a counterpart and is connected to the conductive wire. 6. The connector according to claim 5, wherein at least two notches are provided on the convex portion provided on the entire circumference of one end of the inner wall surface in the insertion hole of the single sheet of plastic sheet. 6. The connector according to claim 4, wherein the protrusion and the notch are formed by etching when the diameter between the protrusions is 1 mm or less. The connector according to claim 5, wherein a spacer having a required thickness is disposed between the two plastic sheets stacked.

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