JP2015173127A - wiring duct system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring duct system capable of down-sizing.SOLUTION: The wiring duct system includes: a plug 1 that holds plural contactors 3 which are formed of a conductive material to be electrically connected to an external unit; and a wiring duct 2 to which the plug 1 is connected. The wiring duct 2 has: plural wirings 4 each of which comes into contact with the contactors 3 to conduct the power; a board 5 as a holding part for holding the wirings 4; and a board nipping part 62 that nips the plug 1 between the board 5 and the same. Each of the wirings 4 is formed of a leaf spring which is elastically deformable to change the protruding dimension from the board 5. Compared to a structure in which contactors 3 are rotated and brought into contact with the wirings 4, the wiring duct system can be down-sized.

Description

  The present invention relates to a wiring duct system.

  Conventionally, a wiring duct system including a wiring duct holding a plurality of wirings and a wiring duct plug used for connecting the wiring duct and a device has been provided (for example, see Patent Document 1).

  In the conventional plug, a rectangular contact made of a conductive material is inserted into a groove included in the wiring duct and rotated, thereby bringing the contact into contact with the wiring held in the groove. It was a structure.

JP 2010-177138 A

  However, in the above-described conventional example, it is necessary to secure at least a size of a handle or the like that receives an operation force, and thus it is difficult to reduce the size while enabling the above-described rotation operation.

  This invention is made | formed in view of the said reason, The objective is to provide the wiring duct system which can be reduced in size.

  The wiring duct system of the present invention includes a plug having a plurality of contacts made of a conductive material and electrically connected to an external device, and a wiring duct to which the plug is connected, the wiring duct having the contact A plurality of wires that are in contact with the child and a holding portion that holds the wires, the wires being elastically deformable so as to change a protruding dimension from the holding portion, and the wiring duct And a pinching portion for elastically pinching the plug with the wiring.

  According to the present invention, it is possible to reduce the size as compared with a structure in which each contact is rotated and brought into contact with the wiring.

It is sectional drawing which shows embodiment of this invention. (A) (b) is a figure which shows a plug same as the above, respectively (a) is a front view, (b) is a left view. It is a front view which shows the state which decomposed | disassembled the plug same as the above. It is a left view which shows the state from which the cover was removed from the plug same as the above. It is a left view which shows the cover of a plug same as the above. It is a left view which shows the principal part of the example of a change of a plug same as the above. It is a left view which shows the principal part of another example of a change of a plug same as the above. It is a front view which shows the plug in another modified example same as the above. It is sectional drawing which shows the wiring duct in the example of FIG. FIG. 10 is a left side view illustrating an example of the plug in the example of FIG. 9. FIG. 10 is a left side view illustrating another example of the plug in the example of FIG. 9. It is sectional drawing which shows another example of a change same as the above. It is sectional drawing which shows another example of a change same as the above. It is sectional drawing which shows another example of a change same as the above. It is a right view which shows the principal part of the wiring duct in another modified example same as the above. It is a bottom view which shows the wiring in the example of FIG. It is a perspective view which shows the wiring in the example of FIG. (A)-(e) is sectional drawing which shows the principal part of the wiring duct in the example which changed the shape of wiring, respectively.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the present embodiment is a wiring duct system including a plug 1 having four contacts 3 each made of a conductive material and a wiring duct 2 to which the plug 1 is connected by fitting. Hereinafter, the upper, lower, left and right will be described with reference to FIG. The wiring duct 2 has a structure in which a cross section as shown in FIG. 1 is extended in a direction perpendicular to the paper surface of FIG. 1 (hereinafter referred to as “front-rear direction”). The dimensions are at least larger than the plug 1.

  The wiring duct 2 is made of a conductive material and has four wirings 4 that are in contact with the contacts 3 in a one-to-one manner, and a flat plate made of an insulating material with the thickness direction directed in the left-right direction. And a substrate 5 serving as a holding portion that is held side by side so as to protrude in the direction. When there are four or more sets of the contact 3 and the wiring 4 as described above, at least two of the wirings 4 can be used for power transmission and at least two can be used for signal transmission. The substrate 5 is made of, for example, a synthetic resin, and known means such as insert molding or fitting can be adopted as means for holding the wirings 4 on the substrate 5. Further, the wiring duct 2 has a frame 6 that holds the substrate 5. The frame 6 includes a coupling portion 61 coupled to the substrate 5 so as to cover the left surface and upper and lower surfaces of the substrate 5, a sandwiching portion 62 that covers the substrate 5 when viewed from the right side, and an insertion port 20 into which the plug 1 is inserted. It has the connection part 63 which connects the upper end part of the coupling | bond part 61, and the upper end part of the clamping part 62 so that it may leave between the board | substrate 5 and the clamping part 62. FIG. That is, the wiring duct 2 as a whole has a U-shaped cross section in which the insertion port 20 is opened downward. The frame 6 can be formed of an insulating material such as a synthetic resin. However, if the frame 6 is formed of a conductive material such as a metal, the frame 6 can prevent electromagnetic noise. For example, the wiring duct 2 as described above is positioned so that the opening of the insertion port 20 faces downward and the right surface of the sandwiching portion 62 faces the wall surface, and there is a gap at least enough to introduce the plug 1 below. Thus, it is fixed to the wall surface by appropriate means such as screwing.

  The plug 1 is made of an insulating material, has a flat plate shape, and has a substrate 7 that holds the contacts 3 side by side. Each contact 3 is formed by, for example, gold plating on the left surface of a copper plate with the thickness direction directed in the left-right direction. If such gold plating is provided, an increase in contact resistance due to oxidation can be suppressed. Further, a plurality of spherical contact protrusions 31 protrude from the left surface of each contact 3. That is, since each contact 3 comes into contact with the wiring 4 on the convex curved surface of the contact convex portion 31, each contact 3 connects the wiring 4 with each contact 3 in contact with the wiring 4 at an acute angle portion. Hard to hurt. The contact protrusion 31 as described above can be formed, for example, by pressing a copper plate before gold plating. Further, the contact 3 may have a flat plate shape. Alternatively, the contact 3 may be a leaf spring that can be elastically deformed so as to change the projecting dimension from the substrate 7, and in this case, the contact 3 has a spring property in a direction of elastic contact with the wiring 4. become.

  As shown in FIGS. 2 and 3, the substrate 7 is fixed to the base 71 holding each contactor 3 so as to protrude leftward, and to the left side of the base 71 as shown by an arrow A1 in FIG. And a cover 72. A device connecting portion (not shown) connected to an external device is provided at a lower end portion of the plug 1 that protrudes below the wiring duct 2. The device connection portion may have a known terminal structure to which an electric wire is directly connected, or may have a connector-like structure. Further, as shown in FIG. 4, on the left surface of the base 71, a lead portion 32 made of a conductive material and electrically connecting the contact 3 and the device connection portion corresponds to the contact 3 on a one-to-one basis. Four are provided. The base 71 and the cover 72 each have a flat plate shape with the thickness direction directed in the left-right direction, and are made of, for example, a synthetic resin. The cover 72 covers at least a part of the drawer portion 32 when viewed from the left side, and as shown in FIG. 5, four windows are through-holes for projecting each contact 3 to the left. A hole 720 is provided. Each drawer part 32 may be comprised with the electroconductive pattern, and the contactor 3 may be comprised with the integral metal plate.

  In the above example, each contactor 3 is positioned at the front of the lower contactor 3 so that there is no other contactor 3 below at least at the left end (right side in FIG. 2B). They are arranged in a staircase pattern. And each drawer | drawing-out part 32 is connected with the left end part of the contact 3 at each upper end part, and is extended below, and is thickness direction (the left-right direction and orthogonal to the paper surface in FIG.2 (b). Do not overlap the contact 3 in the direction of Thereby, compared with the case where any drawer | drawing-out part 32 overlaps with the contact 3 which does not respond | correspond in the thickness direction, the short circuit between each drawer | drawing-out part 32 and the contact 3 becomes difficult to generate | occur | produce. As shown in FIG. 6, the contacts 3 may not overlap at all in the vertical direction, and in this case, the position of the lead-out portion 32 can be on the front side (right side in FIG. 6). . Alternatively, as shown in FIG. 7, the contacts 3 may be arranged so as to be completely overlapped in the vertical direction. If this configuration is adopted, the dimensional shape of the plug 2 can be set for the area of each contact 3. Can be small. However, in this case, if each drawer portion 32 is pulled out downward, the insulation between the drawer portion 32 and the contact 3 that overlap each other in the thickness direction (the direction perpendicular to the paper surface in FIG. 7) It is necessary to ensure by an appropriate insulating layer.

  Here, each wiring 4 is made of a metal leaf spring having a cross-sectional Ω shape, and can be elastically deformed so as to change the rightward projecting dimension from the substrate 5 as the holding portion.

  Further, the distance between each wiring 4 and the sandwiching portion 62 in a state where each wiring 4 is not elastically deformed is made smaller than the thickness dimension (dimension in the left-right direction) of the plug 1. That is, if the plug 1 is inserted into the insertion port 20 from below, the plug 1 is elastically sandwiched between each wiring 4 and the sandwiching portion 62 by the spring force of each wiring 4. Further, the contact pressure between each wiring 4 and the contact 3 is ensured by the spring force of each wiring 4.

  According to the said structure, compared with the structure which rotates each contactor 3 and contacts the wiring 4, respectively, size reduction is attained.

  In addition, in order to improve the holding force of the wiring duct 2 with respect to the plug 1, as shown in FIG.8 and FIG.9, while providing the engaging convex part 11 on both surfaces (left and right both surfaces) of the thickness direction of the plug 1, respectively, The wiring duct 2 may be provided with an engagement recess 21 into which the engagement protrusion 11 is engaged. The engaging recess 21 can be formed in a groove shape that is long in the front-rear direction, for example. As the wiring duct 2 (frame 6) is elastically deformed so as to widen the insertion slot 20 in the process of inserting and removing the plug 1, each engaging convex portion 11 is engaged with and disengaged from the engaging concave portion 21, respectively. Further, in a state where each contactor 3 is in contact with the corresponding wiring 4, the engagement protrusions 11 engage with the engagement recesses 21, so that the plug 1 is dropped from the wiring duct 2 downward. Is prevented. The position of the engaging convex part 11 may overlap the drawer part 32 in the thickness direction as shown in FIG. 10, or may be a position that does not overlap the drawer part 32 as shown in FIG. Note that the plug 1 may be provided with an engagement recess in which the engagement protrusion provided in the wiring duct 2 is engaged, with the concavities and convexities reversed from the above.

  Further, as shown in FIG. 12, the contacts 3 may be provided on both surfaces of the plug 1, and the wiring 4 and the substrate 5 as a holding part may be provided on both the left and right sides of the wiring duct 2 sandwiching the plug 1. That is, the plug 1 is sandwiched between the wirings 4 as a whole, and the wiring 4 also serves as a sandwiching portion. In other words, each wiring 4 becomes a sandwiching portion for another wiring 4 (that is, the opposing wiring 4) held on the substrate 5 different from itself. In this case, as compared with the case where the contact 3 and the wiring 4 are provided only on one side of the plug 1, the size can be reduced for the number of sets of the contact 3 and the wiring 4.

  Furthermore, as shown in FIG. 13, the wiring duct 2 may be provided with a partition wall 22 for partitioning the substrates 5 (holding portions), and the plug 1 may be provided with a connection recess 12 into which the partition wall 22 is inserted. In the example of FIG. 13, the plug 1 has a U-shaped cross section having two substrates 7 that make opposite surfaces of the surface from which the contact 3 protrudes face each other and a connecting portion 13 that connects the lower ends of the substrates 7 to each other. The connecting recess 12 is formed between the substrates 7 on the upper side of the connecting portion 13. Further, the left surface of the substrate 7 is provided with a convex section 14 having a triangular cross section that gradually decreases the width dimension (the dimension in the left-right direction) of the connection concave section 12 toward the center in the vertical direction. In a state where none of the substrates 7 is elastically deformed, the width dimension of the connection recess 12 is made smaller than the thickness dimension (dimension in the left-right direction) of the partition wall 22. That is, when the partition wall 22 is introduced between the convex portions 14, each substrate 7 is elastically deformed so as to warp the upper end portion outward in the left-right direction. The convex portions 14 as described above may be formed continuously and integrally with the substrate 7 or may be constituted by separate parts that are fixed to the substrate 7 by appropriate means such as adhesion. In the above configuration, if the partition wall 22 is made of a conductive material, electromagnetic noise can be prevented by the partition wall 22. In this case, in order to suppress radiation noise reaching the wiring 4 through which the signal is transmitted from the wiring 4 through which the power is transmitted, the wiring 4 through which the signal is transmitted and the wiring 4 through which the power is transmitted are mutually connected with respect to the partition wall 22. It is desirable to place them on different sides. When the plug 1 is elastically contacted with the partition wall 22 as in the example of FIG. 13, the partition wall 22 also serves as a sandwiching portion together with the wiring 4. Here, in the example of FIG. 13, the partition wall 22 is formed as a part of the frame 6, but the partition wall 22 may be configured by a separate component coupled to the frame 6.

  Further, as shown in FIG. 14, the plug 1 is provided with a sandwiching portion 15 that sandwiches the substrate 5 (holding portion) of the wiring duct 2 between the substrate 7 as the main body portion, and the sandwiching portion 15 has left and right inward facings. One of each of the engaging convex portion 11 and the engaging concave portion 21 may be provided on the surface and the left and right outward surfaces of the wiring duct 2. In the example of FIG. 14, the connecting portion 13 protrudes left and right from the substrate 7, and both left and right end portions of the connecting portion 13 are connected to the lower end portion of the sandwiching portion 15. Further, engagement / disengagement of the engagement convex portion 11 with respect to the engagement concave portion 21 is achieved by elastic deformation of the connecting portion 13 and the clamping portion 15. Note that the concavity and convexity may be reversed to the above, and an engaging recess in which the engaging convex portion provided on the outer surface of the wiring duct 2 is engaged may be provided in the pinching portion 15 of the plug 1. 8 and FIG. 9 and the example of FIG. 14 are combined, and the engagement convex portion 11 and the engagement concave portion 21 are engaged on both the inner and outer sides of the insertion port 20 of the wiring duct 2, respectively. You may do it.

  Further, as shown in FIGS. 15 to 17, each wiring 4 may be provided with a plurality of spring portions 41 that can be elastically deformed independently of each other by being divided by the slits 40. By adopting this configuration, even when a foreign object is sandwiched between the wiring 4 and the contact 3, the spring portion 41 in a range where no foreign object is sandwiched can be brought into contact with the contact 3. The reliability of connection is improved as compared with the case where the plurality of spring portions 41 are not provided.

  Furthermore, the shape of each wiring 4 is not limited to the Ω shape as described above, and for example, various shapes as shown in FIGS. In the example of FIG. 18A, each wiring 4 has an 8-shaped shape with a constriction provided at the center in the left-right direction. In the example of FIG. 17B, each wiring 4 has a V-shape that elastically contacts the contact 3 at an acute-angled bent portion. Further, in the examples of FIGS. 18C to 18E, each wiring 4 has a cantilever structure that is held on the substrate 5 only at one end portion and elastically contacts the contactor 3 at the other end portion. . In the example of FIG. 18C, each wiring 4 is V-shaped as a whole, and only one side of the bent portion is held by the substrate 5 so that the other side (free end side) of the bent portion is a contact. Elastically touch 3 Further, in the example of FIG. 18D, each wiring 4 has a W shape in which the number of bent portions is increased as compared with the example of FIG. Further, in the example of FIG. 18E, each wiring 4 is bent in a spiral shape and elastically contacts the contactor 3 on the outer peripheral surface having a convex curved surface shape.

  Further, the whole of the wiring duct 2 except the wiring 4 may be formed of one part of synthetic resin. In this case, the manufacturing cost can be reduced by reducing the number of parts.

DESCRIPTION OF SYMBOLS 1 Plug 2 Wiring duct 3 Contact 4 Wiring (it also serves as a pinching part in the example of FIGS. 12-14)
5 Substrate (holding part)
6 Frame 7 Substrate (main part)
DESCRIPTION OF SYMBOLS 11 Engagement convex part 12 Connection recessed part 15 Holding part 21 Engagement recessed part 22 Partition wall (In the example of FIG. 13, FIG. 14, it also serves as a clamping part)
31 Contact convex part
62 Clip part

Claims (3)

A plug having a plurality of contacts made of a conductive material and electrically connected to an external device, and a wiring duct to which the plug is connected,
The wiring duct has a plurality of wires that are in contact with the contact and a holding portion that holds the wires,
The wiring is elastically deformable so as to change a protruding dimension from the holding portion,
The said wiring duct has a pinching part which clamps the said plug elastically between the said wiring, The wiring duct system characterized by the above-mentioned.   The wiring duct system according to claim 1, wherein the contact is provided with a plurality of contact protrusions. The wiring duct has two holding portions that make the surfaces holding the wiring face each other,
The plug is inserted between the two holding portions,
The wiring duct system according to claim 1 or 2, wherein each wiring also functions as the pinching portion that elastically holds the plug between the wirings facing each other.

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