JPH04269479A - High density connector - Google Patents

Abstract

PURPOSE:To rationalize the assembling and improve noise resistance in a high density connector by improving the constitution of a female connector so as to accommodate with the higher density of an interface connector used in connection between a device body such as a personal computer and an attached equipment such as CRT unit. CONSTITUTION:In a high density connector formed of an insulating body 1 for receiving a contact part to which a terminal pin is connected and a metal shell 2 fitted and locked to the insulating body 1, the insulating body has at least hexagon nut drop holes 10 and metal shell tongue part inserting holes 12 on the front fitting part side and metal tongue piece grooves 11 for engaging and locking the metal shell 2 on the peripheral side surface parts, and the metal shell 2 has at least metal tongue pieces 20 for locking with the insulating body 1 and metal tongue parts 21 for earthing.

Description

[Detailed description of the invention]

0001

FIELD OF THE INVENTION This invention relates to high density connectors. In detail, this article concerns the rational assembly of interface connectors used to connect devices such as personal computers and attached devices such as CRT units to accommodate higher density, and the improvement of the structure of female connectors with excellent noise resistance. .

0002

[Background Art] In recent years, as various electronic devices have become smaller, connectors used to connect these devices have become more compact.
For example, narrow pitch interface connectors (I/F connectors) are now required. Recently, standard I/F connectors (for example, D
A high-density I/F connector that can accommodate 15 cores by arranging three rows of terminals in a 9-core shape (sub connector) is attracting attention.

FIG. 4 is a diagram showing an example of the structure of a conventional high-density connector, and shows the structure of the female connector part. ) is an exploded perspective view seen from the back, (c) is a fully assembled perspective view seen from the front, and (d) is a fully assembled perspective view seen from the back. Note that the figure shows a case of nine cores for convenience.

Conventionally, as shown in FIGS. 1A and 2B, holes 10', for example, were bored on both sides of the terminal portion of an insulator 1' formed by resin molding.
Insert the locking tubes 200 provided at positions corresponding to the blank holes 10' of the metal shell 2' into the metal shell 2', and caulk the ends of the locking tubes 200 with the back surface of the insulator 1'. 1' and metal shell 2' are locked. A tap of any size, such as M3 or M2.6, is cut on the front opening side of the locking tube 200.

When the insulator 1' and the metal shell 2' are assembled by caulking the tip of the locking tube part 200, the structure shown in FIG.
As shown in c) and (d), the hexagonal metal fitting 4 is screwed into the tap. Note that one of the locking pipe portions 200
The ground pin 7 may be caulked at the same time when caulking.

[0006] Furthermore, as shown in Figures (B) and (D), a bracket for arranging the terminal pins is integrally formed on the back surface of the insulator 1', and the terminal pins 6 are attached to the bracket.
For example, the connector is pulled out at a right angle, forming a so-called right-angle type connector.

[0007]

[Problems to be Solved by the Invention] However, in the conventional connector structure described above, it is necessary to prepare different types of metal shells 2' for each screw diameter of the hexagonal fitting 6, which is extremely inconvenient in terms of parts assortment and parts management. It's reasonable. In addition, since the bracket 50 is formed integrally with the insulator 1' at the same time, there are many problems such as, for example, the inability to attach a bracket with a built-in ferrite core for modern noise countermeasures as is. There is a need for a solution.

[0008]

[Means for Solving the Problem] The above problem is solved by a high-density connector consisting of an insulator 1 that accommodates a contact portion to which a terminal pin 6 is connected, and a metal shell 2 that is fitted and locked to the insulator 1. , the insulator 1 has a hexagonal nut insertion hole 10 on the front fitting side, a metal shell tongue insertion hole 12 on the front fitting side, and the metal shell 2 on the peripheral side surface of the insulator 1. A high density metal shell 2 is provided with at least a groove 11 for a metal tongue piece for locking, and the metal shell 2 is provided with at least a metal tongue piece 20 for locking with the insulator 1 and a metal tongue part 21 for grounding. A bracket plate mounting hole 13 is provided on the connector and the terminal drawer side of the insulator 1,
An independent bracket plate 5 is provided in the bracket plate mounting hole 13.
This problem can be effectively solved by using a high-density connector configured so that the pin terminals 6 are aligned with each other.

[0009]

[Operation] According to the present invention, the hole in the metal shell 2 into which the threaded portion of the hexagonal fitting 4 is inserted is a blank hole, and the hexagonal nut 3 into which the screw itself is screwed can be of various general-purpose thread diameters. Since the hexagonal nut 3 is housed in the hexagonal nut drop-in hole 10 provided in the insulator 1, even if the thread diameter of the hexagonal metal fitting 6 changes, it is extremely easy to adapt by simply changing the inexpensive general-purpose hexagonal nut. It's easy. Furthermore, the insulator 1 and the metal shell 2 are locked together by fitting the metal tongue pieces 20 provided on the metal shell 2 into the grooves 11 for two metal tongue pieces provided on the insulator 1, for example. There is no problem because the structure is crimped on the back of 1. Further, since the insulator 1 is provided with a metal shell tongue insertion hole 12 into which the metal shell tongue 21 provided on the metal shell 2 is inserted, connection of the ground pin is extremely easy.

Furthermore, a hole 13 for mounting a bracket plate is provided on the terminal drawer side of the insulator 1, and an independent bracket plate 5 is mounted therein so that the pin terminals 6 can be aligned. , any bracket, such as a bracket with a built-in ferrite core, can be easily attached.

[0011]

[Embodiment] Fig. 1 is a diagram (part 1) showing an embodiment of the present invention. Fig. 1 (a) is a front perspective view of an insulator, and Fig. 1 (b) is a front perspective view of a metal shell. The case of 15 cores is shown.

In the figure, 1 is an insulator, for example, PBT.
At least 15 contact portions, which are integrally molded of resin or the like, and into which terminal pins (not shown) are connected, such as fork-shaped contacts, are inserted.
Contact receiving holes are drilled. 10 is a hole for dropping a hexagonal nut, 11 is a groove for a metal tongue piece, 12 is a hole for inserting a metal shell tongue piece, and 12' is the metal shell tongue formed on the fixed foot extending on the back surface of the insulator 1. Both are integrally molded at the same time during resin molding at the extension of the single insertion hole. 3 is a general-purpose hexagonal nut.

[0013] Reference numeral 2 denotes a metal shell, for example, a drawn product made of steel and plated with Ni. 20
21 is a metal tongue piece, 21 is a metal shell tongue portion, and 22 is a hole. Further, 4 is a hexagonal metal fitting.

FIG. 2 is a diagram showing an embodiment of the present invention (Part 2)
Figure (A) is a rear perspective view of the insulator, and Figure (B) is a perspective view of an independent bracket plate. In the figure, 13 is a hole for mounting a bracket plate. Reference numeral 5 denotes a bracket plate, which is molded from, for example, PBT resin, and has small tongue pieces 51 formed around it. Note that, if necessary, the bracket plate 5 can be configured to have a built-in ferrite core.

The procedure for assembling the insulator 1 and the metal shell 2 according to the embodiment of the present invention described above is as follows: first, a contact is press-fitted into the contact receiving hole of the insulator 1, and then the insulator 1 is
A plurality of, for example, two hexagonal nut holes 1
A general-purpose hexagonal nut 3 with a predetermined diameter tapped is inserted into the insulator 1, and then a plurality of, for example, two metal shells provided on the front fitting side of the insulator 1, for example, below the front surface, are inserted into the insulator 1. The metal shell tongue 21 of the metal shell 2 is inserted into the tongue insertion hole 12.
Insert.

At this time, the metal tongue pieces 20 of the metal shell 2 are simultaneously and tightly fitted into a plurality of, for example, two metal tongue grooves 11 provided on the peripheral side surface, for example, the upper side of the insulator 1. As a result, the two become integrally fitted together.

FIG. 3 is a diagram showing an embodiment of the present invention (Part 3)
Figure (a) is a perspective view of the completed assembly seen from the front, and figure (b) is a perspective view of the completed assembly seen from the back. In the figure, 20' is a caulking part. Note that the same parts as those explained in the above drawings are given the same reference numerals, and the description of the same parts will be omitted.

When the insulator 1 and the metal shell 2 are fitted together in the above assembly procedure, the metal tongue piece 2
The tip of the insulator 1 is bent and caulked at the back of the insulator 1 to form a caulked portion 20' to firmly engage and fix the two. As a result, the hexagonal nut 3 is automatically clamped between the two. Therefore, the threaded portion of the hexagonal metal fitting 4 is inserted into the screw hole of the hexagonal nut 3 through the hole 22 of the metal shell 2 and fixed [see FIG. 2(a)].

Finally, the bracket plate 5 is attached to the bracket plate attachment hole 13 provided on the terminal drawer side of the insulator 1. As shown in the figure, the bracket plate 5 has, for example, holes through which the respective terminal pins 6 are inserted, so that the terminal pins 6 are aligned at predetermined intervals [see figure (b)]. The bracket plate 5 may be fixed to the bracket plate mounting hole 13 by press-fitting the small tongue piece 51 shown in FIG. If it is difficult to form, it may be fixed using an adhesive.

[0020] In the above embodiments, the number and position of each component are shown as examples, and the present invention is not limited thereto unless it goes against the spirit of the present invention. Furthermore, it goes without saying that other materials or a combination thereof may be selected as appropriate for the materials and detailed components used.

[0021]

As explained above, according to the present invention, the hole in the metal shell 2 into which the threaded part of the hexagonal fitting 4 is inserted is a blank hole, and the hexagonal nut 3 into which the screw itself is screwed can be any type of general-purpose screw. The hexagonal nut 3 is structured to be stored in the hexagonal nut drop-in hole 10 provided in the insulator 1, so even if the screw diameter of the hexagonal fitting 6 changes, only an inexpensive general-purpose hexagonal nut can be used. It is extremely easy to deal with this by simply changing the . In addition, a hole 13 for mounting a bracket plate is provided on the terminal drawer side of the insulator 1, and an independent bracket plate 5 is mounted therein so that the pin terminals 6 can be aligned. A bracket plate, such as a bracket with a built-in ferrite core, can be easily attached, so a high-density connector with excellent noise resistance can be constructed. Therefore, it greatly contributes to improving the ease of assembling and performance of high-density connectors for interfaces, as well as reducing prices.

[Brief explanation of the drawing]

FIG. 1 is a diagram (part 1) showing an embodiment of the present invention.

FIG. 2 is a diagram (part 2) showing an embodiment of the present invention.

FIG. 3 is a diagram (part 3) showing an embodiment of the present invention.

FIG. 4 is a diagram showing a structural example of a conventional high-density connector.

[Explanation of symbols]

1 is an insulator, 2 is a metal shell, 3 is a hexagonal nut, 4 is a hexagonal metal fitting, 5 is a bracket plate; 6 is a terminal pin, 10 is a hexagonal nut drop hole, 11 is a groove for a metal tongue piece; 12 is a metal shell tongue insertion hole; 13 is a hole for attaching a bracket plate; 20 is a metal tongue piece; 21 is a metal shell tongue; 51 is the ligule,

Claims (2)

[Claims] [Claim 1] A high-density connector comprising an insulator (1) that accommodates a contact portion to which a terminal pin (6) is connected, and a metal shell (2) that is fitted and locked to the insulator (1). , a hexagonal nut drop-in hole (10) on the front fitting side of the insulator (1), a metal shell tongue insertion hole (12) on the front fitting side of the insulator (1), and a hole (12) for inserting a metal shell tongue on the front fitting side.
) is provided with at least a groove (11) for a metal tongue for locking the metal shell (2), and a groove (11) for a metal tongue piece for locking the metal shell (2) with the insulator (1). A high-density connector characterized in that it is provided with at least a metal tongue piece (20) and a metal tongue part (21) for grounding. 2. A bracket plate mounting hole (13) is provided on the terminal drawer side of the insulator (1), and an independent bracket plate (5) is provided in the bracket plate mounting hole (13).
2. The high-density connector according to claim 1, wherein the high-density connector is configured such that the pin terminals (6) are aligned when the pin terminals (6) are attached.