JPS607028Y2 - Connector contact holding structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a contact holding structure for a connector of an electronic device.

Printed circuit board panels are already being used in electronic application equipment, and with this, so-called direct mounting on printed circuit boards, in which connectors are connected directly to printed circuits by inserting terminals directly into the wiring holes of printed boards, has become less popular. shaped connectors have been put into practical use.

For this type of connector, the mating operation is roughly divided into two types: horizontal and vertical to the printed board surface, but in electronic devices that require high-density design, multiple printed boards are used. Since many panels are assembled together, it is common to use a connector that operates horizontally to the printed circuit board surface for ease of use, that is, the mating contact part and the wiring terminal to the printed board are perpendicular to each other internally. It is.

Next, to explain this based on the drawings, A
1 is a sectional view of a conventional printed board direct-mounted connector that fits with a compatible plug C, and B is a side sectional view of A showing the state in which the wiring terminal of the contact is connected to the printed board.

A and B in Figure 1. In C, the insulator body 1 constitutes a plug that becomes a male connector together with the contact 2 which has a slope at the tip of the mating part, but the socket mating with this has contacts 5 and 6. The two insulators, a case 3 and a cover 4 fastened with screws 7, function as an outer shell.

Here, an enlarged perspective view of the contact 5 is shown in FIG. 2, and in order to facilitate the insertion of the contact 2 at the tip of the U-shaped tube toward the contact point, the openings 49 on both edges are widened by β. The sum of t and β that occurs when 2 passes the heave point is t + β ≦ α for the housing part size α of 3, which is a necessary condition in order to maintain smooth spring operation as γ ≦ α. It is.

Therefore, it is unavoidable that 5 and 6 move within the accommodation space shown by α, and especially when soldering the contacts to the printed circuit board 8, when connecting terminal part 2, it is necessary to connect the inlet T of 3 and the inlet T of 5 or 6. Misalignment occurs in the center axis - When inserting 2, it collides with the end face of the 49 opening before reaching the 8th position, deforming the contactor, or it fits outside the β dimension, that is, on the opposite side to the contact point, There are cases where the original contact function cannot be achieved, and 5.
In order to stabilize the position of No. 6, a positioning jig must be used for soldering No. 2 during construction, which requires a great deal of effort to maintain quality and has become a bottleneck in production.

In order to solve the above problems, the present invention provides a simple and useful structure, and as shown in the outline in Fig. 3, it is possible to reliably and accurately position the tip end of the contact. It has been made possible.

Describing the structure of the present invention, the present invention provides a vertical socket in which a soldered terminal extending from the contact is orthogonal to a contact located in the mating operation direction, and the shape of the contact is such that the base is It has a U-shaped folded part,
The distance between the two pieces narrows toward the tip, and the tip opens again, so that the tip ends are opened parallel to each other by a small distance, and the distance between the two pieces narrows toward the tip. Both inner surfaces are narrowly engaged with the outer surfaces of internal protrusions that protrude slightly inward above and below the inside of the fitting opening of the socket, and have a slight continuation of the U-shaped folded portion of the contact. Both inner surfaces of the parallel part are circumscribed and engaged with both sides of the angular protrusion protruding from the inner wall of the contact housing hole, so that the center line of the contact always aligns with the mating axis. This is the contact holding structure of the connector.

Hereinafter, the present invention will be explained by way of examples with reference to the drawings.

FIG. 3 shows a sectional view of an embodiment of the present invention.

To explain Fig. 3, this means that the contact accommodating portion of the insulator case has a distance E1 and a height δ centered on the inlet T.
In addition, the contact has a shape in which the tips of the a and the mouth are extended in parallel, that is, it has a predetermined opposite corner dimension ζ as shown in the bottom of FIG. This is to clamp and hold the outer distance E between the protrusions.

Next, for the folded part of the U-shaped wire, the corner part of the chi and dowel is formed by setting the dimension μ>θ with respect to the width θ of the contact, while the contact housing part in the insulator body has the following dimensions: As shown in the plan view of FIG. 5, E and ζ are sandwiched at an interval of η, and a side protrusion E is provided which has a dimension inscribed in the parallel part dimension K of the U-shaped scallop. Then, the parallel portion of the contact whose tip is the tip is engaged with the internal protrusion having a height of >η, thereby forming support at both ends.

Therefore, the center lines of the contacts 5 and 6 are necessarily positioned at the fitting axis of the socket 3, so the second soldering allows for a stable holding structure that is not affected by external factors such as construction work. It can be realized.

Although the above-mentioned embodiment has been explained using a printed circuit board as an example, it is clear that the same effect can be obtained even if this is used for a wire terminal as shown in FIG. 6.

As explained above, according to the present invention, it is possible to reliably and accurately position the leading edge of the contact in a vertical socket, which not only facilitates manufacturing but also provides a connector that is stable in handling. can do.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the structure of a conventional printed board direct-mounted socket and a side view of a plug, and FIG. 2 is a perspective view of a contact used therein. Fig. 3 is a cross-sectional view of the structure of the socket according to the present invention, Fig. 4 is a perspective view of its contact, Fig. 5 is a front view showing a retractable structure for holding it, and Fig. 6 is a The perspective view when a contactor is used as a terminal for wire wiring is shown. Note that the symbols used in the drawings indicate the following. 1... Insulator body of compatible plug, 2...
...Plug contact, 3...Socket body, 4...Cover, 5, 6...Socket contact, 7...Fixing screw , 8... Printed circuit board.

Claims (1)

[Scope of utility model registration request] In a vertical socket, in which the soldered terminal extending from the contact is perpendicular to the contact located in the mating operation direction, the contact has a U-shaped folded portion at the base, and the tip The distance between the two pieces narrows as it goes to
The tips are again open and have a shape in which the leading ends are parallel to each other by a small distance, such that both inner surfaces of said parallel leading ends of the contact are located inside the mating opening of the socket. The inner projections are narrowly engaged with the outer surfaces of the internal protrusions that protrude slightly inward at the top and bottom of the contact, and both inner surfaces of the slightly parallel portions following the U-shaped folded portion of the contact are connected to the contact receiving hole. A contact holding structure for a connector, characterized in that the structure is externally engaged with both sides of an angular protrusion projecting from an inner wall of the connector, so that the center line of the contact is always aligned with a mating base axis.