JPS5936389B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a connector used as an external connection terminal in various electronic devices, in which a plug and a jack are configured to be relatively insertable and detachable, and by combining these two, a plurality of terminals can be connected. The present invention relates to a structure in which these are connected to each other.

As connectors of this type, there have been various multi-terminal connectors, including the Canon connector.

However, all of these conventional connectors have a large number of terminals arranged on a flat surface, so that, for example, the front projected area of the connector is large compared to the number of terminals.
For this reason, conventional connectors have a very poor space factor when attached to various electronic devices, and tend to be unsuitable especially for small electronic devices. The present invention has been devised to correct the above-mentioned defects, and provides (a) a plug having a substantially rod-like shape, and having a plurality of conductive terminals provided on its outer circumferential surface.

(b) A jack having a cylindrical hole, and a plurality of conductive terminals provided on the inner peripheral surface of the cylindrical hole.
By inserting the plug into the cylindrical hole of the jack and rotating it through a predetermined angle, the conductive terminals of the plug and the jack are brought into contact with each other.

With this configuration, the front projected area can be made very small compared to the number of terminals, resulting in an extremely compact connector. Embodiments of the connector to which the present invention is applied will be described below with reference to the drawings. This connector consists of a plug 1 and a jack 2, each of which is made of synthetic resin.

The plug 1 has a substantially rod-like configuration as shown in FIGS. 1-4.

That is, the main body 5, which is shaped like a rod, has a hollow part 6 formed in its center, the tip 5a has a circular protrusion T in the center, and the other end 5b has a circular flange 8 and a conical tube. Part 9,
Ribs 10 for reinforcing and securing the base are each integrally molded. In addition, at the tip 5a of the main body 5, a part of the circumferential surface,
That is, a rectangular projection 11 is integrally formed on the lower surface side in the figure, and a pair of click recesses 12a, 1 are provided on the outer peripheral surface Ba of the flange 8 with an interval of 900 mm apart.
2b is molded. A pair of terminal segments 13a and 13b are fitted into the main body 5 at a distance of 1800 degrees from each other and parallel to the axis of the main body 5. The outer peripheral surfaces of both terminal segments 13a and 13b are formed flush with the cylindrical outer peripheral surface 5c of the main body 5.
A large number of conductive terminals (hereinafter simply referred to as terminals) 14a, 14b are provided on both terminal segments 13a, 13b at predetermined intervals along the axial direction of the main body 5. These many terminals 14a and 14b each constitute a so-called spring contact made of a leaf spring member, and these terminals are arranged in two rows parallel to each other at an interval of 180 degrees, and are connected to the outer periphery. It protrudes from the surface 5c. These terminals 14a, 14b are connected to their lead wire connection ends 15a, 15.
b is inserted into the hollow part 6, and a large number of lead wires 6 drawn into the hollow part 6 connect to each of these connecting ends 15.
One each is soldered to a and 15b. Note that a large number of lead wires 16 are grouped together to form a cable IT, and the end of the cable is inserted into the cylindrical portion 9 and fixed. Also, two surfaces 18a perpendicular to each other are provided on the outer circumferential surface 5c of the main body 5.
, 18b are formed along the axial direction of the main body 5 at a distance of 180° from each other. Further, at the base of the flange 8 of the main body 5, a pair of slits 20a are provided at an interval of 180°.
20b is molded. - The jack 2 is of substantially cylindrical construction as shown in FIGS. 1 and 5-T.

However, this jack 2 is made up of a pair of members 23 cut in half.
A, 23b are integrally connected using a plurality of fasteners 24 such as screws, rivets, and eyelets. The tip 2 of the main body 25 of this jack 2 is formed into a substantially cylindrical shape.
A flange 26 is integrally formed on 5a, and the other end 25b is a closed end.

An opening 2T having the same outer shape as the tip 5a of the plug body 5 and a slightly larger inner diameter is formed in the tip 25a of the main body 25. That is, this opening 2T has a circular inner peripheral surface 2 that is slightly larger than the outer peripheral surface 5c of the plug body 5.
7a, and a pair of triangular protrusions 29 having right-angled faces 28a and 28b, respectively, facing the notches 19a and 9b, are located at a distance of 180° on the inner circumferential surface 2Ta.
a and 2.9b are integrally molded. Further, on a part of this inner circumferential surface 2Ta, that is, on the lower surface side in the figure, the protrusion 1
A notch 30 is formed into which 1 can be inserted. Further, a circular recess 31 is formed on the outer side of the opening 2T, and the flange 8 can rotate in a fitted state, and a part of the circular inner peripheral surface 31a of this recess 31 has an elastic click. A convex portion 32 for use is integrally molded. However, although the hollow portion 33 is formed inside the main body 25,
The terminal 1 is provided on the cylindrical inner circumferential surface 25c of the hollow portion 33.
A large number of conductive terminals (hereinafter simply referred to as terminals) 35a, 35b are provided along the axial direction of the main body 25 at the same intervals as the terminals 14a, 14b.

The large number of terminals 35a and 35b constitute so-called spring contacts each made of a leaf spring member, and these terminals are arranged in two parallel rows with an interval of 180 degrees. Lead wire connecting ends 36a, 36b of these terminals 35a, 35b are projected to the outside of the main body 25, and lead wires (not shown) are connected to these, respectively. Further, at the center of the inner surface of the other end 25b of the main body 25, there is a circular recess 3T in which the projection T can rotate in a fitted state.
is molded. Note that the length dimension 11 of the hollow part 33 of the jack 2 and both notches 20a in the main body 5 of the plug 1 are
, 20b to the tip are substantially the same, and both protrusions 29a, 2 of the opening 2T of the jack 2
9b, and both notches 20a, 2 of the plug 1.
The groove width dimension T2 of 0b is substantially equal to the groove width dimension T2. Next, the method for connecting plug 1 and jack 2 described above will be explained in the eighth section.
This will be explained with reference to FIGS.

First, the protrusion 11 of the plug 1 is aligned with the notch 30 of the jack 2, and the plug 1 is inserted into the jack 2 from the axial direction as shown in FIG. At this time, by applying the protrusion 11 to the notch 30, so-called misalignment, such as the plug 1 being oriented upside down, is prevented.

When the plug 1 is inserted, both protrusions 29a, 29a
Since the notches 19a and 19b are moved relative to each other, the plug 1 cannot be rotated during insertion, and the plug 1 is guided by these protrusions 29a and 29b into the jack 2. Plugged in.

Note that FIG. 8 shows a state in which the above-mentioned insertion is completed, and at this time, the protrusion T is fitted into the recess 3T, and both slits 20a, 2
0b is aligned with both protrusions 29a and 29b, and the flange 8 is fitted into the recess 31.

Also, at this time, the convex portion 32 is connected to one of the concave portions 12 as shown in FIG. 1IA.
It is fitted into a. Also, at this time, the terminal 14a on the plug 1 side,
14b and the terminals 35a, 35b on the jack 2 side are shifted by 90 degrees from each other as shown in FIG. 28a and husband are shifted by 90 degrees as shown in FIG. 10A.

Both slits 20a and 20b are connected to both protrusions 1a and 29b.
By fitting the plug 1 to the jack 2, the 9th
It becomes possible to rotate 90° clockwise in Figures A to 1IB. Therefore, when the plug 1 is rotated 90 degrees clockwise after the above insertion is completed, both slits 2 are opened as shown in Fig. 10B.
0a, 20b are fitted into both protrusions 29a, 29b, and both groove bottoms 21a, 21b of both slits 20a, 20b abut against two surfaces 28a of both protrusions 29a, 29b, preventing further rotation. At the same time, the complete fitting of these two prevents the plug 1 from being removed later.

At the same time, after the convex part 32 rides on the outer circumferential surface 8a of the flange 8, the other concave part 12b is removed as shown in FIG. 1IB.
The plug 1 is click-locked in its 90° rotated position. Therefore, due to the 90° rotation of the plug 1, the terminal 14a on the plug 1 side,
14b and the terminals 35a and 35b on the jack 2 side, which are opposed to each other, are brought into contact simultaneously against their elasticity, as shown in FIG. 9B, and the plug 1 and the jack 2 are electrically connected. Become.

Incidentally, when removing the plug 1 from the jack 2, it is sufficient to carry out the reverse operation to the above-mentioned insertion.

As described above, the present invention consists of a plug configured in a substantially rod shape and a jack configured in a substantially cylindrical shape, and a plurality of conductive terminals are provided on the outer and inner circumferential surfaces of these, and the plug is inserted into the jack. Since these conductive terminals are brought into contact with each other by being rotated by a predetermined angle, the front projected area can be made very small compared to the number of terminals.

Therefore, a very compact product can be obtained as a whole, and a product which is very advantageous as a multi-terminal connector for various small devices such as a liquid crystal watch or a small calculator can be obtained. In addition, almost the entire plug can be inserted into the jack, and the opening on the jack side required for insertion can be made very small, just enough to match the diameter of the plug, making it a great connector. A very good seal can be obtained.

[Brief explanation of the drawing]

The drawings show one embodiment of a connector to which the present invention is applied, in which Fig. 1 is an exploded perspective view of a plug and a jack, Fig. 2 is a vertical sectional view of the plug, and Fig. 3 is a cross-sectional view of the plug. 4 is a sectional view taken along lines from FIG. 2, FIG. 5 is a longitudinal sectional view of the jack, FIG. 6 is a sectional view taken from FIG. 5, and FIG.
Figure 8 is a vertical cross-sectional view of the plug inserted into the jack; Figures 9A, 10A, and 1IA are the lines before the plug is rotated; -X-ray, X
The I-XI line sectional views, Figures 9B, 10B, and 1IB are the Figures 8-- and X-- showing the state in which the plug is rotated 90 degrees.
It is an X-ray, MM line sectional view. In addition, in the symbols used in the drawings, 1 is the plug, 2 is the jack, 5 is the plug body, 5c is the outer peripheral surface of the plug body, 14a, 14b are conductive terminals, 25 is the jack body, 2
5c is the inner peripheral surface of the jack body, and 35a and 35b are conductive terminals.

Claims (1)

[Scope of Claims] 1. (a) A plug having a substantially rod-like shape and having a plurality of conductive terminals provided on its outer peripheral surface. (b) A jack having a cylindrical hole, and a plurality of conductive terminals provided on the inner peripheral surface of the cylindrical hole. A connector comprising: a connector configured such that when the plug is inserted into a cylindrical hole of the jack and rotated by a predetermined angle, the conductive terminals of the plug and the jack are brought into contact with each other.