JP2008098024A - Multipolar connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten a wiring work time by enabling a terminal number to be discerned at a glance and preventing faulty wiring. <P>SOLUTION: In the multipolar connector 40 provided with a main body part 20 with a number of contact members planted on an insulation board 21 in a matrix arrangement, and a terminal cover 50 equipped with an insulating lattice frame 31 with a number of zoning holes 34 formed in correspondence with the matrix arrangement, mounted on a rear-end side of the main body 20 individually partitioning wiring connection terminals 24 of the contact members by containing each wiring connection terminal 24 in a zoning hole 34 one by one, a starting-point mark 51 of a rectangular shape surrounding one at the corners out of the zoning holes 34, and linear division marks 52, 53 dividing the zoning holes 34 in a plurality of groups are formed by coloring of corresponding sites of the lattice frame 31. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a multipolar connector in which wiring connection terminals of a large number of contact members (contacts) are partitioned by a grid frame one by one, and more specifically, a main body portion in which a large number of contact members are implanted in an insulating substrate; The present invention also relates to a multipolar connector provided with a grid-like terminal cover mounted on the back side of the main body for individually insulating and separating the wiring connection terminals of the contact members arranged on the back side.
All the wiring connection terminals are configured to manually connect the wiring.

In the railway field, signal security devices are used as a general term for signal devices, interlocking devices, switchboards, blocking devices, railroad crossing safety devices, and other safety devices. As a typical example of railway signal security devices, An ATC device may be mentioned. Such signal security devices are often divided into a plurality of racks such as a logical rack, a common rack, a main rack, and an input / output rack, and are connected by a plurality of cables between the racks.
A multipolar connector that conforms to the standard of a railway signal security device is used as a connector provided on the end of the cable between the racks or on the rack side (see, for example, Patent Document 1).

  For example, as a multi-pin connector (multi-pole connector) conforming to the railway field standard “former JRS22661”, a plug portion provided at both ends of an inter-cable cable, or a jack portion (jack) equipped on each rack as its counterpart Board). When the jack portion is outlined, this connector includes a substantially rectangular insulator-made jack plate (insulating substrate) and forty jacks (contact members). A rectangular convex portion that can be fitted into the concave portion of the plug portion is formed on the front side of the jack plate. In this convex part, 40 small holes for guiding when inserting pins are perforated in 10 rows and 4 columns corresponding to the matrix arrangement of the pins of the plug part, and there are jacks (contact members, contacts) at the back thereof. ) Has been planted.

This jack board (conventional multi-pole connector) is attached to the outer surface of the rack, etc., with the front side where the mating plug part is attached / detached facing outward, and the rear side facing the interior of the rack. The end of the wiring in the rack is connected manually.
Concerning the rear side of the jack board 10, components useful for explaining the present invention will be described with reference to the drawings. 2A is a rear perspective view of the rear side of the jack board 10 as a whole, FIG. 2B is an enlarged rear view of the terminal cover 30, and FIG. 2C is an exploded perspective view of the rear side of the jack board 10 as a whole. is there.

The jack board 10 includes a main body 20 and a terminal cover 30, and the terminal cover 30 is mounted on the back side of the main body 20 with a set screw 11 (screw member). Only a minus-shaped engraving suitable for a minus driver is formed on the head of the set screw 11, and a minus driver is used for screwing the set screw 11.
The main body 20 includes a rectangular insulating substrate 21 made of an electrically insulating member such as plastic, and all are made of a good conductor and are implanted in the insulating substrate 21 so as to protrude a contact portion on the front side and a wiring connection terminal on the back side. A plurality of contact members 24 are exposed, and a pair of stoppers 22 are formed on the upper and lower sides of the insulating substrate 21. A large number of wiring connection terminals 24 are arranged in a matrix on the back surface of the insulating substrate 21. Specifically, forty wiring connection terminals 24 are arranged in ten rows and four columns.

  The terminal cover 30 includes a lattice frame 31 in which a large number of partition holes 34 are formed, and a pair of additional portions 32, for example, in which upper and lower through holes 33 through which the screw portions of the set screws 11 are inserted are formed. Yes, it is integrally formed from an electrically insulating plastic or the like, for example, by compression molding or the like. A large number of partition holes 34 are arranged vertically and horizontally in the same arrangement as the matrix arrangement of the wiring connection terminals 24. Specifically, forty partition holes 34 are aligned in ten rows and four columns. When the set screw 11 passed through the through hole 33 is screwed into the female screw 23 and the additional portion 32 is attached to the stopper 22, the terminal cover 30 is mounted on the main body portion 20. In addition, in the mounted state, one wiring connection terminal 24 is accommodated in each partition hole 34, and all adjacent wiring connection terminals 24 are partitioned by the lattice frame 31.

In order to use such a jack board 10, at the preparation stage, the jack board 10 is mounted on an appropriate rack and a maximum of forty wires are connected to the wiring connection terminals 24. It is manual work by hand. That is, a crimp terminal is attached to the end of the wiring, and the crimp terminal is connected to the wiring connection terminal 24 at a predetermined position and fixed in contact. After the connection is completed, a continuity / insulation test is performed by a tester or the like, and if it is confirmed that there is no error, preparation for use of the jack board 10 is completed.
When the jackboard 10 is ready for use, the plug section is attached to the jackboard 10 and the jackboard 10 is used for signal transmission.

JP 2005-212532 A

In such a conventional multipolar connector, the grid frame of the terminal cover is one color such as white. For this reason, when the wiring work is performed from the back side to the wiring connection terminal of the contact member after mounting the jack board on the relay rack or the like, it is possible to visually determine the terminal number of the wiring connection terminal to which the wiring is to be connected. It was not easy, and the mental burden of preventing miswiring was heavy on the operator, and the wiring work time tended to be long.
Therefore, it is an important technical problem to improve the multipolar connector so that the terminal numbers can be identified at a glance in order to prevent erroneous wiring and shorten the wiring work time at the same time.

In addition, in the conventional multi-pole connector, the set screw as the screw member used to lock the terminal cover after connecting the crimp terminal is dedicated to the flat-blade screwdriver. there were.
Therefore, with respect to the multipolar connector formed by assembling the main body portion and the terminal cover, it is a further technical problem to relax the limitation on the driver that can be used when the terminal cover is locked and to improve the workability at the time of locking. It becomes.

  The multipolar connector of the present invention (Solution 1) was devised to solve such a problem, and a main body portion in which a large number of contact members are implanted in a matrix arrangement on an insulating substrate; It has an insulating lattice frame in which a large number of partition holes corresponding to the matrix arrangement are formed, and is mounted on the back side of the main body portion so that the wiring connection terminals of the contact members are made into the partition holes one by one. In a multipolar connector provided with a terminal cover for partitioning the wiring connection terminals individually, a quadrilateral origin mark surrounding one of the corners of the partition hole is formed by coloring the corresponding part of the lattice frame. It is characterized by.

  Further, the multipolar connector of the present invention (Solution 2) is the multipolar connector of Solution 1, wherein the linear division marks dividing the partition holes into a plurality of groups are colored by the corresponding parts of the lattice frame. It is formed.

  Further, the multipolar connector of the present invention is (Solution means 3), which is the multipolar connector of the above solution means 1 and 2, wherein the terminal cover is attached to the main body portion by a screw member. The head is characterized in that a minus-shaped engraving suitable for a minus driver and a plus-shaped engraving suitable for a plus driver are formed in an overlapping manner.

In such a multipolar connector of the present invention (solution 1), when the contact members are arranged in a matrix, the terminal numbers of the wiring connection terminals of the contact members are assigned starting from one of the corners. Assuming that this is normal and that the wiring connection terminals are housed in the partition holes of the lattice frame of the terminal cover one by one, a starting point mark is attached to the quadrilateral shape surrounding one of the corners of the partition holes. As a result, the wiring connection terminal at the starting point is surrounded by the starting point mark and becomes clear at a glance. In addition, since the starting point mark is formed by coloring the electrically insulating lattice frame, not the contact member of the good conductor or the main body portion in which the good point contact member is implanted, it is accurate and inexpensive.
Therefore, according to the present invention, it is possible to realize a low cost multi-polar connector that can easily discriminate the terminal number, prevent erroneous wiring, and shorten the wiring work time.

Moreover, in the multipolar connector of the present invention (Solution means 2), on the premise of the matrix arrangement of the contact members, the visibility is further improved by adding a straight division mark in addition to the starting mark. Thus, even if there are many dozens or more of wiring connection terminals of the contact member, all the terminal numbers can be discriminated at a glance. Further, since the division mark can be formed together with the formation of the starting mark, the formation can be made accurately and inexpensively even if the number of marks increases.
Therefore, according to the present invention, even if there are a large number of terminal numbers, it is possible to realize a multipolar connector at low cost, which can be distinguished at a glance and erroneous wiring is easily prevented and wiring work time is short. it can.

  Furthermore, in the multipolar connector according to the present invention (Solution 3), the screw member used when locking the terminal cover is adapted to both the minus driver and the plus driver, so that the terminal cover is chained. Since the types of drivers that can be used for locking increase, workability during locking is improved.

A specific configuration of an embodiment of the multipolar connector of the present invention will be described with reference to the drawings. 1A is an external perspective view of the back side of the entire connector, FIG. 1B is an enlarged rear view of the terminal cover, and FIG. 1C is an exploded perspective view of the back side of the entire connector.
In the drawings, the same reference numerals are given to the same components as those in the prior art, and therefore, the repeated explanation will be omitted, and the following description will focus on differences from the conventional products described above. .

  The multi-pole connector 40 exemplified here is a multi-pin connector conforming to the railway field standard “former JRS22661”, like the jack board 10 described above, and a large number of contact members are arranged in a matrix on the insulating substrate 21. It has a main body 20 that is implanted, and an insulating lattice frame 31 in which a number of partition holes 34 corresponding to the matrix arrangement are formed. A terminal cover 50 for individually partitioning the wiring connection terminals 24 by accommodating the wiring connection terminals 24 in the partition holes 34 one by one, and a set screw 12 for attaching the terminal cover 50 to the main body 20 are provided. The part 20 is inherited from the jack board 10 as it is, but the set screw 12 and the terminal cover 50 are modified parts of the set screw 11 and the terminal cover 30.

The set screw 12 is different from the set screw 11 in that the engraving formed on the head of the set screw 12 is a combination of a minus-driver-enhanced-shaped engraving and a plus-driver-applied + -shaped engraving. This is the point. Specifically, a long engraving covering the entire length of one diameter in the head of the set screw 12 and a short engraving perpendicular to the engraving are formed.
The terminal cover 50 is different from the terminal cover 30 in that one starting point mark 51 and two division marks 52 and 53 are formed by coloring with respect to the rear and rear surfaces of the lattice frame 31.
The starting mark 51 has a quadrilateral shape and surrounds one of the upper left corners of the multiple partition holes 34, and the division mark 52 has a horizontal straight line, and divides the multiple partition holes 34 into two equal parts. The mark 53 is a vertical straight line, and divides a number of partition holes 34 into left and right halves.

The marks 51 to 53 are colored with, for example, red different from the ground color of the lattice frame 31 so as to be conspicuous with respect to the corresponding portion on the junior plane of the lattice frame 31.
For the coloring, a plastic-dedicated paint suitable for the material of the plastic lattice frame 31 is used, and the coloring is performed by, for example, silk printing in order to avoid scattering of the paint. Further, in order to improve the adhesion of the paint and increase the adhesion density of the paint, a surface treatment such as a corona treatment is performed as a pretreatment for printing on the portion of the lattice frame 31 where the marks 51 to 53 are to be printed. Although it is preferable to perform this, it is better if the pretreatment time is longer than usual.

A use aspect etc. are demonstrated about the multipolar connector 40 of this embodiment.
Prior to use, the terminal cover 50 is mounted on the back side of the main body 20 when the multipolar connector 40 is assembled. The procedure of the mounting operation is the same as in the prior art, in which the neck of the screw 12 (screw member) is placed in the through hole 33. After the insertion, the set screw 12 is axially rotated by a screwdriver, the tip of the screw portion of the set screw 12 is screwed into the female screw 23, and the additional portion 32 and the stopper 22 are fastened, whereby the lattice frame 31 is insulated. However, unlike the conventional case, the set screw 12 is suitable not only for a minus driver but also for a plus driver, so that any driver can easily and accurately perform the work.

  In addition, when wiring work is performed from the back side to the wiring connection terminal 24 of the contact member after mounting the multipolar connector 40 on a relay rack or the like, the ends of the wiring in the rack are each manually operated as in the prior art. Unlike the conventional case, since the starting mark 51 is attached to the grid frame 31 of the partition of the wiring connection terminal 24, the first terminal is provided even if there are a large number of wiring connection terminals 24. 24 can be seen at a glance. Further, the wiring connection terminals 24 arranged in ten rows and four columns are divided by dividing marks 52 every five rows in the vertical and vertical directions, that is, every fifth row, and every two columns in the horizontal and horizontal directions, that is, twenty. Because each number is divided by a division mark 53, the fifth, sixth, fifteenth, sixteenth, twenty-fifth, twenty-sixth, thirty-fifth, three It is possible to make an accurate determination by simply looking at the sixteenth, even the twenty-third, thirty-th, and even other wiring connection terminals 24 between them.

Therefore, wiring work can be easily performed in a short time. Other modes of use are the same as in the prior art.
Therefore, since the multipolar connector 40 of the present invention can be assembled with either a flat-blade screwdriver or a flat-blade screwdriver, the workability at the time of locking the terminal cover is improved as compared with the prior art. In addition to the mark 51, the linear division marks 52 and 53 are also attached to the terminal cover 50, so that the visibility is improved and all the terminals of the contact member wiring connection 24 are as many as 40. Since the number can be discriminated at a glance, erroneous wiring can be easily prevented and the wiring work time can be shorter than before.

[Others]
In the above embodiment, the starting point mark 51 and the division marks 52 and 53 are shown as continuous solid lines, but some of them may be cut off, or may be broken lines or dotted lines. Further, the color is not limited to one red color, and may be other colors or multicolor printing.

  If the present invention is a multipolar connector in which a grid-like terminal cover is mounted on the back side of the main body and the wiring connection terminals of a large number of contact members are partitioned by a grid frame one by one, the jack The present invention can be applied not only to the panel but also to the plug part, and can be applied even if it is outside the standard of the railway signal security device.

1 shows the structure of a multipolar connector according to an embodiment of the present invention, in which (a) is a rear perspective view of the entire connector, (b) is an enlarged rear view of a terminal cover, and (c) is an entire connector. It is an expansion | deployment perspective view of a back side. FIG. 5A is a rear perspective view of the back side of a conventional multipolar connector, FIG. 5B is an enlarged rear view of the terminal cover, and FIG. 5C is an exploded perspective view of the back side of the whole connector.

Explanation of symbols

10 ... Jack board (multipolar connector), 11, 12 ... Set screw,
20 ... Main body, 21 ... Insulating substrate, 22 ... Stopper,
23 ... Female screw, 24 ... Wiring connection terminal (back end of the planting jack),
30 ... Terminal cover, 31 ... Lattice frame, 32 ... Additional part, 33 ... Through hole, 34 ... Partition hole,
40 ... multipolar connector, 50 ... terminal cover,
51 ... Start mark, 52, 53 ... Division mark

Claims (3)

  A main body portion in which a large number of contact members are implanted in a matrix arrangement on an insulating substrate, and an insulating lattice frame in which a large number of partition holes corresponding to the matrix arrangement are formed. In a multipolar connector that is mounted on the back side and includes a terminal cover that individually partitions the wiring connection terminals by storing the wiring connection terminals of the contact member one by one in the partition holes, A multipolar connector, wherein a starting mark having a quadrilateral shape surrounding one is formed by coloring a corresponding portion of the lattice frame.   The multipolar connector according to claim 1, wherein linear division marks that divide the partition holes into a plurality of groups are formed by coloring the corresponding portions of the lattice frame.   The terminal cover is attached to the main body portion by a screw member, and a minus-shaped engraving suitable for a minus driver and a plus-shape engraving suitable for a plus driver are superimposed on the head of the screw member. The multipolar connector according to claim 1, wherein the multipolar connector is provided.

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