JP2007207437A - Connector with cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector with cables which has a smaller and simpler structure and can be more easily manufactured. <P>SOLUTION: A plurality of cables 5 are placed side by side in the longitudinal direction of a connector 3 on a printed circuit board 2 with each of the cables keeping a position along the direction perpendicular to the longitudinal direction of the connector 3, the core wire 5a of each cable 5 is connected to a wiring pattern, a plurality of the cables 5 are wired toward one direction along the longitudinal direction of the connector 3 by bending them, and the printed circuit board 2 is bent at a bending line 2e between a connector mounting area 2a and a cable connecting area 2b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector with a cable in which a connector and a cable are mounted on a printed board.

  As a conventional connector used for this type of connector with a cable, one disclosed in Patent Document 1 is known.

  The connector disclosed in Patent Document 1 is formed by fitting and mounting a socket mounted on a printed circuit board and a header mounted on another printed circuit board. Both the socket and the header are provided with a large number of terminals arranged in two rows, and have an elongated shape as a whole.

  For the connector with cable, either one of the socket and the header is used, but generally, it is desired to reduce the size as much as possible so that it can be routed in a narrow space such as in a cylinder. A smaller one (header) is often used.

  Specifically, an elongated connector (that is, either a socket or a header) is mounted on an elongated printed circuit board, and a plurality of cables are connected to each other in the longitudinal direction of the printed circuit board (= longitudinal direction of the connector). A connector with a cable is configured by arranging and arranging along the edge in the longitudinal direction (that is, in a direction substantially orthogonal to the longitudinal direction) and connecting the lead wires of each cable to the wiring pattern of the printed circuit board. The

As a result, a plurality of cables are routed in the longitudinal direction, so that the cable bundle with the elongated connector-attached printed circuit board is connected to the end of the cable bundle along the extension line of the cable bundle. A connector is obtained.
JP 2004-55463 A

  However, in the configuration of the connector with a cable, the printed circuit board is long and the width of the longitudinal end edge where the cables are arranged side by side is narrow. It was not possible to arrange all of the cables.

  In such a case, the connection position of a plurality of cables is also set in a plurality of locations, such as setting the inner side of the end edge portion, and if it is still insufficient, the printed circuit board is folded in multiple stages, The cable connection position was secured.

  However, such a configuration becomes complicated, and it takes time and effort to divide the cable connection work into several times, which increases the manufacturing tact time and increases the manufacturing cost. There was a problem of doing.

  Moreover, if the connection positions of the cables are set in a plurality of locations, the printed circuit board must be made wider (longer) accordingly, and the size is increased. However, if multiple cable connection positions are placed close to each other so that they are not as wide as possible, the cables will overlap each other, increasing the height and width, making it difficult to route the connector with cable in a narrow space. Or, there was a problem that it could not be routed.

  Accordingly, an object of the present invention is to obtain a connector with a cable that can be more easily manufactured with a smaller and simpler configuration.

  According to the first aspect of the present invention, an elongated connector is mounted on a printed circuit board on which a wiring pattern is formed, and a cable conductor is electrically connected to each wiring pattern in which each terminal of the connector is electrically connected. In the connector with a cable, a plurality of the cables are arranged in the longitudinal direction of the connector on the printed circuit board in a posture along the direction intersecting with the longitudinal direction of the connector, and each conductor is connected to the wiring pattern. The cable is bent and wired in one direction along the longitudinal direction of the connector, and the printed circuit board is arranged between the region where the connector is mounted and the region where a plurality of conductors are connected to the wiring pattern. It is characterized by being folded with a crease.

  The invention according to claim 2 is characterized in that the conductive wire is connected to the wiring pattern on the surface of the printed circuit board on which the connector is mounted.

  The invention according to claim 3 is characterized in that the printed circuit board is bent so that the connector and the portion where the plurality of conducting wires are connected to the wiring pattern are opposite to each other.

  In the invention of claim 4, the cable includes a core wire as the conducting wire, an insulating layer that covers the core wire, a shield conductor that covers the insulating layer, and an outer skin that covers the shield conductor; The shield conductors of a plurality of cables arranged on the printed circuit board are connected to the rod-shaped conductors attached to the printed circuit board.

  The invention according to claim 5 is characterized in that a plurality of cables arranged on the printed circuit board are arranged between the printed circuit board and the rod-shaped conductor.

  According to the first aspect of the present invention, since the cables to be connected to the printed circuit board are arranged along the longitudinal direction of the connector, the cable connection can be performed in a relatively wide area. Therefore, the configuration can be simplified and the manufacturing effort can be saved and the manufacturing cost can be reduced as much as there is no need to provide a plurality of cable connection positions as in the prior art.

  In addition, by a relatively simple operation of bending a plurality of cables connected to the printed circuit board and arranging them in the longitudinal direction, a printed circuit board with a connector that is elongated along the extension line is connected to the end of the cable bundle. A connector with cable can be obtained.

  According to the second aspect of the present invention, the mounting of the connector and the connection of the cable can be performed on the same surface of the printed circuit board, so that these operations can be performed more easily.

  According to invention of Claim 3, the connector mounted in the printed circuit board and the cable connected to the printed circuit board do not mutually interfere, and the malfunction by those interference can be suppressed.

  According to the invention of claim 4, by connecting the shield conductor to the rod-shaped conductor attached to the printed circuit board, the shield conductor can be grounded and the connection strength between the cable and the printed circuit board can be increased. .

  According to the invention of claim 5, since it is possible to hold a plurality of cables in a state of being sandwiched between the printed board and the rod-shaped conductor, when bending the cable in the out-of-plane direction of the surface of the printed board, The bending force generated by the bending can be applied to the rod-shaped conductor, and the connection state between the cable and the printed board can be more reliably maintained.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a connector with a cable according to the present embodiment. FIGS. 2, 4, and 5 are diagrams showing a manufacturing process of the connector with a cable. FIG. The figure which shows the state which mounted and connected the cable ((a) is a top view, (b) is a side view, (c) is the top view which expanded a part), FIG. 4 bent the connected cable. FIG. 5 is a diagram showing a state in which the printed circuit board is further bent ((a) is a plan view, (b) is a side view), and FIG. 3 is a diagram showing a portion where a cable is connected to the printed circuit board. FIG. 6 is a side view showing a state in which the connector with cable is inserted into the tubular member. In the drawing, X indicates the longitudinal direction of the printed circuit board (connector), and Y indicates the direction orthogonal to the longitudinal direction X (short direction of the printed circuit board).

  As shown in FIG. 1, the connector with cable 1 according to the present embodiment is obtained by attaching a printed board (for example, a flexible board) 2 on which the connector 3 is mounted to the tip of a cable bundle 4. Although FIG. 1 shows only one end side of the cable bundle 4, the printed circuit board 2 on which the connector 3 is mounted may be attached to both ends of the cable bundle 4, or may be provided only at one end. . When the printed circuit board 2 with the connectors 3 mounted on both ends of the cable bundle 4 is attached as in the former case, the cable bundle 4 is branched into a plurality at one end side, and the connector is mounted for each branched cable bundle 4. A printed circuit board may be attached.

  The connector 3 is provided with a plurality of terminals 3b. These terminals 3b are connected to the cores in the cables 5 of the cable bundle 4 via wiring patterns (not shown) formed on the printed circuit board 2. It is electrically connected to a wire (conductive wire) 5a (see FIG. 2). In this connector 3, a plurality of terminals 3b are arranged in two rows along the longitudinal direction, and the connector 3 has an elongated shape as a whole. Along with this, the printed circuit board 2 (a state where it is folded at a fold line (fold) 2e as will be described later) is also formed elongated, and the longitudinal direction of the connector 3 and the longitudinal direction of the printed circuit board 2 are made to coincide with each other. The cable bundle 4 is pulled out from the printed board 2 along the longitudinal direction, and the printed board 2 to which the connector 3 is attached is aligned with the extending direction of the cable bundle 4.

  The connector 3 is fitted and attached to another connector (not shown) mounted on another printed circuit board or the like. By fitting and mounting these connector 3 and another connector, the terminal 3b of the connector 3 is electrically connected to a wiring pattern or the like formed on another printed circuit board via the terminal of the other connector. Is done.

  As shown in FIG. 2A, the printed board 2 is formed in a substantially rectangular shape, and on the surface thereof, the connector 3 is mounted and each cable 5 constituting the cable bundle 4 is connected. That is, the mounting of the connector 3 and the connection of the cable 5 are performed on the same surface of the printed board 2.

  In the present embodiment, the connector 3 is disposed along the longitudinal direction X at one end side in the short direction Y of the printed circuit board 2, while the cable 5 is disposed at the other end side in the short direction Y of the printed circuit board 2. Thus, the portions that are arranged along the longitudinal direction X of the printed circuit board 2 (that is, the longitudinal direction of the connector 3) and connect the cable 5 are set as one elongated region along the longitudinal direction X of the printed circuit board 2.

  In the subsequent process, the printed circuit board 2 is bent at the center line (folding line 2e) in the short direction Y located between the connector 3 and the cable connection portion. In this embodiment, With this folding line 2e as a boundary, an area on the side where the connector 3 is mounted is referred to as a connector mounting area 2a, and an area on the side where the cable 5 is connected is referred to as a cable connection area 2b.

  The connector 3 can be constituted by, for example, insert-molding a plurality of terminals 3b into an elongated main body portion 3a made of molding resin. Each terminal 3b is integrally connected to a connection terminal 3c projecting outward in the width direction at the lower part of the main body 3a. In this embodiment, the connection terminal 3c is connected to a wiring pattern (not shown) on the printed circuit board 2. The connector 3 is mounted on the printed circuit board 2 by being soldered to the terminals 2d as the end portions of the printed circuit board 2 respectively. Of course, in addition to soldering between the terminals 3c and 2d, means for coupling or engaging with the printed circuit board 2 may be provided.

  As shown in FIGS. 2B and 3, the cable 5 includes a core wire 5a serving as a conducting wire, an insulating layer 5b covering the core wire 5a, a shield conductor 5c covering the insulating layer 5b, and a shield conductor 5c. And an outer skin 5d for covering the wire, and is configured as a so-called thin coaxial line.

  Each cable 5 is on the printed circuit board 2 in a posture along a direction intersecting with the longitudinal direction X (in this embodiment, a direction orthogonal to the longitudinal direction X; that is, the short direction Y of the printed circuit board 2). Are arranged in a line along the line. Further, the end portions of each cable 5 are all treated in the same manner so that the core wire 5a, the insulating layer 5b, and the shield conductor 5c are all exposed with the same length (ratio), and these portions are short-circuited on the printed circuit board 2. Aligned in the direction Y, aligned in a line along the longitudinal direction.

  On the other hand, as shown in FIG. 2A, the printed circuit board 2 has a plurality of terminals 2c as one end portions of the wiring pattern arranged in a line along the longitudinal direction X. The core wire 5a of the cable 5 is soldered, so that the cable 5 is connected to the printed circuit board 2. In FIG. 2B, 7 indicates a solder layer.

  At this time, in this embodiment, since the plurality of core wires 5a and the terminals 2c are arranged in a line, the soldering is arranged in the longitudinal direction over the plurality of core wires 5a. Can be performed at once, for example, by heating.

  In this embodiment, as shown in FIGS. 2A and 3, a bar-shaped conductor 6 is provided on the printed circuit board 2 along the longitudinal direction X, and the bar-shaped conductor 6 and the shield conductor 5 c of the cable 5 are provided. And connected.

  Specifically, two elongated rod-shaped conductors 6 having substantially the same length and rectangular cross section are used, and one of the rod-shaped conductors 6 is placed on the surface of the printed circuit board 2 and the cable 5 is placed on the rod-shaped conductor 6. The shield conductor 5c is placed and arranged, and the other rod-like conductor 6 is placed on the arranged cable 5 (shield conductor 5c), and both end portions in the longitudinal direction X of the two rod-like conductors 6 and 6 are placed on the printed circuit board 2. While soldering and joining to the surface (the conductor layer formed on it), the surface 6a which contacts the cable 5 (shield conductor 5c) of the rod-shaped conductor 6 and the shield conductor 5c are soldered. . In FIG. 3, reference numerals 8 and 9 denote solder layers.

  With such a configuration, in addition to the core wire 5a being connected to the terminal 2c, the shield conductor 5c is connected to the rod-like conductor 6 fixed on the printed circuit board 2, so that the cables 5 can be connected at two locations. As a result, the connection strength between the cable 5 and the printed circuit board 2 can be greatly improved.

  Here, in this embodiment, since the shield conductors 5c are arranged in a line, the heating body is pressed against the surface side of the rod-shaped conductor 6 (the surface opposite to the contact surface with the shield conductor 5c). If the rod-shaped conductor 6 is heated, the plurality of shield conductors 5c and the rod-shaped conductor 6 can be soldered at a time.

  As described above, after the connector 3 is mounted on the printed circuit board 2 and the cable 5 is connected, in the present embodiment, the connected cable 5 is bent as shown in FIG. Are routed along the longitudinal direction X. In the present embodiment, as shown in FIG. 2A, the portion of the cable 5 that is routed in a posture along the longitudinal direction X away from the printed circuit board 2 (upper side in FIGS. 2A and 4). The cable 5 is bent at a substantially right angle by moving it in a substantially right angle direction (right side in FIG. 2A and FIG. 4) while twisting it while lifting it upwards above the mounting surface of the printed circuit board 2. Yes. By adopting the configuration and method of bending the cable 5 while twisting in this way, the bending work can be performed very easily in the state of the cable bundle 4, and the bending force on the cable 5 due to the bending, as a result, There is an advantage that a load on the printed circuit board 2 and a load on the printed circuit board 2 can be reduced.

  At this time, in this embodiment, as described above, since the cable 5 is sandwiched between the rod-shaped conductor 6 and the printed board 2, the bending force generated by bending the cable 5 is borne on the rod-shaped conductor 6. Thus, it is possible to suppress the bending force from acting directly on the soldered portion (solder layer 7) between the core wire 5a of the cable 5 and the terminal 2c and peeling off this portion. .

  Next, as shown in FIG. 5, the printed circuit board 2 is bent along a folding line 2e to complete the connector 1 with cable. At this time, the printed circuit board 2 is bent so that the connector mounting area 2a and the cable connection area 2b face each other. Thereby, the connector 3 and the cable connection portion do not interfere with each other, and the connector 3 and the cable 5 can be prevented from being damaged by the interference.

  At this time, the cable 5 (cable bundle 4) is bent to the inner side from the end edge of the printed circuit board 2 while being twisted as appropriate, so that the printed circuit board is finally obtained as shown in FIG. The cable 5 (cable bundle 4) protrudes as far as possible outward in the width direction (short direction Y) of the printed circuit board 2 in the upper area (upper area inside the edge) of the cable connection area 2b. It is preferable not to have it.

  The cable-equipped connector 1 obtained in this way is reduced in height and can be formed in a small size. Therefore, as shown in FIG. 6, it becomes possible to pass through the narrow in-cylinder space 11 of the relatively small tubular member 10, which contributes to further miniaturization of an electronic device using the connector 1 with cable. It will be.

  According to the above embodiment, since the cable 5 connected to the printed circuit board 2 is arranged along the longitudinal direction of the connector 3, the cable connection can be performed in a relatively wide area. Therefore, the configuration can be simplified and the manufacturing effort can be saved and the manufacturing cost can be reduced as much as there is no need to provide a plurality of cable connection positions as in the prior art.

  In addition, when the number of terminals of the connector 3 and the number of cables are increased, the length of the longitudinal edge of the printed circuit board 2 is increased accordingly, so that the cable installation area can be secured very easily. The printed circuit board 2 with a connector is less likely to increase in the height direction (width direction), which is advantageous for routing in a narrower space.

  Furthermore, compared to the conventional case where multiple cable connection positions are set on the printed circuit board, the difference (variation) in the length of each cable 5 in the cable bundle 4 can be reduced and the high-speed transmission characteristics can be improved. There is an advantage that it becomes easy.

  In addition, since the plurality of cables 5 (cable bundle 4) connected to the printed board 2 are bent and routed in the longitudinal direction, the printed board 2 with the elongated connector 3 is formed on the extended line at the end of the cable bundle 4. By connecting, the connector 1 with a cable which can be easily wired even in a narrow space or the like can be obtained very easily.

  Further, according to the present embodiment, the mounting of the connector 3 and the connection of the cable 5 can be performed on the same surface of the printed circuit board 2, so that these operations can be performed more easily. .

  Further, according to the present embodiment, the connector 3 mounted on the printed circuit board 2 and the cable 5 connected to the printed circuit board 2 do not interfere with each other, and problems due to the interference can be suppressed. .

  Moreover, according to this embodiment, since the shield conductor 5c is connected to the rod-shaped conductor 6 attached to the printed board 2, the shield conductor 5c can be easily connected to the ground, and the cable 5 and the printed board 2 can be connected to each other. Connection strength can be increased.

  In addition, according to the present embodiment, since the plurality of cables 5 can be held in a state of being sandwiched between the printed board 2 and the rod-shaped conductor 6, the cables 5 are placed in the out-of-plane direction on the surface of the printed board 2. In the case of bending, the bending force generated by the bending can be applied to the rod-shaped conductor 6, and the connection state between the cable 5 and the printed circuit board 2 can be more reliably maintained.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the shape of the connector and the number of terminals can be changed as appropriate.

  Also, the means for fixing the rod-shaped conductor to the printed circuit board is not limited to the above soldering. A conductor layer is formed on the printed circuit board surface in contact with the shield conductor, and the conductor layer and the shield conductor are soldered. May be.

The perspective view of the connector with a cable concerning the embodiment of the present invention. It is a figure which shows the manufacture process of the connector with a cable concerning embodiment of this invention, Comprising: The figure which shows the state which mounted the connector on the printed circuit board and connected the cable ((a) is a top view, (b) is a side view) FIG. 4C is a partially enlarged plan view. The side view which expands and shows the part which connected the cable on the printed circuit board of the connector with a cable concerning embodiment of this invention (AA sectional drawing of FIG.2 (b)). It is a figure which shows the manufacture process of the connector with a cable concerning embodiment of this invention, Comprising: The top view which shows the state which bent the connected cable. It is a figure which shows the manufacture process of the connector with a cable concerning embodiment of this invention, Comprising: The figure which shows the state which bent the printed circuit board ((a) is a top view, (b) is a side view). The side view which shows the state which penetrated the connector with a cable concerning embodiment of this invention in a tubular member.

Explanation of symbols

1 Connector with cable 2 Printed circuit board 2a Connector mounting area (area where the connector is mounted)
2b Cable connection area (area where multiple wires are connected to the wiring pattern)
2e Folding curve (crease)
3 Connector 5 Cable 5a Core wire (conductor)
5b Insulating layer 5c Shield lead 5d Outer skin 6 Bar-shaped conductor

Claims (5)

In a connector with a cable formed by mounting an elongated connector on a printed circuit board on which a wiring pattern is formed and electrically connecting a cable conductor to each wiring pattern in which each terminal of the connector is electrically connected,
A plurality of the cables are arranged in a longitudinal direction of the connector on a printed circuit board in a posture along a direction intersecting with the longitudinal direction of the connector, each conductor is connected to a wiring pattern, and the plurality of cables are bent to form a connector Routed in one direction along the longitudinal direction of
A connector with a cable, wherein the printed board is bent with a crease between an area where the connector is mounted and an area where a plurality of conductors are connected to a wiring pattern.   The connector with a cable according to claim 1, wherein the conductor is connected to a wiring pattern on a surface of the printed board on which the connector is mounted.   The connector with a cable according to claim 1 or 2, wherein the printed circuit board is bent so that the connector and a portion where the plurality of conductive wires are connected to a wiring pattern face each other. . The cable includes a core wire as the conducting wire, an insulating layer that covers the core wire, a shield conductor that covers the insulating layer, and an outer skin that covers the shield conductor,
The connector with a cable according to any one of claims 1 to 3, wherein shield conductors of a plurality of cables arranged on the printed circuit board are connected to rod-shaped conductors attached to the printed circuit board. The connector with a cable according to claim 4, wherein a plurality of cables arranged on the printed circuit board are arranged between the printed circuit board and the rod-shaped conductor.

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