JPS629653Y2 - - Google Patents

Description

[Detailed explanation of the invention] Nowadays, computers, various audio equipment, videos, etc. are becoming smaller and smaller, but the development of round connectors tends to be far behind. The present invention relates to miniaturization of circular connectors. In the conventional circular connector, as illustrated in FIGS. 10 to 13, the plug body a' has a required number of electrode round rods 3 against an insulating wall 2 provided in a hollow cylinder of a shield cylindrical metal 1. , the middle part is provided with an opposing flange edge 4 and then inserted and arranged at intervals, and the socket body b' is also fitted with the metal part of the plug body a'. Fitting groove 5
Then, a Y-shaped terminal plate 7 is placed at a location corresponding to each electrode round bar 3, and the round bar 3 is held in place by a spring between the two-pronged holding parts 6, 6'. Freely fit into the fitting hole 8 and fit the rear leg outside the main body b',
Since this conventional product has a structure in which the locking flange 9 is provided and fixedly arranged, it is not easy to install the electrode rod insert at the exact position of the insulating wall 2 inside the metal 1. In addition, it is necessary to attach opposing flanges 4 and 4' to each electrode round bar 3, and precision insert molding between the flanges 4 and 4' requires a high degree of precision. Moreover, since the three groups of electrode round bars are self-supporting, when the connector is connected, the clamping parts 6, 6' resist the elastic clamping of the terminal plate 7 on the socket side. Because we have to enter
Considerable thickness and strength are required, so the round rod 3 cannot be made into an extremely thin rod, and the provision of a thick electrode rod is inevitably suitable for downsizing the plug body a'. As a result, the socket side cannot be miniaturized, and the overall connector cannot be miniaturized.
Furthermore, even if there is a slight error in the accuracy of the electrode rod diameter, their spacing, and the spacing of the terminals relative to the standard dimensions, the plug may become hard to insert and lack smoothness, or conversely, the fit may be loose. This has many drawbacks, such as not being easy to manufacture and resulting in high manufacturing costs, resulting in poor contact.

The present invention has a configuration in which an electrode holding member is exposed to a required length on the plug side, and a required number of electrode bodies are arranged along the longitudinal circumferential side of the holding member by fitting in grooves, and the socket side By arranging the terminals corresponding to the plug electrodes by groove-fitting them into the inner peripheral wall of the fitting hole into which the exposed electrode holding member is fitted, it is possible to make the relative electrode body extremely thin, thereby making it easy to increase the number of electrodes and arrange them. It is advantageous to miniaturize the entire connector as well as
Therefore, it is an object of the present invention to provide a compact connector that is inexpensive, economical, and has reliable contact performance and high safety, by reliably eliminating the above-mentioned drawbacks of the conventional technology, simplifying the mechanism, and making it easy to manufacture. be.

The embodiment of the present invention will be explained with reference to the attached drawings regarding a circular 4P connector as follows.

Figures 1 to 4 show the basic form of the present invention, in which the required number of electrodes, e.g. Semicircular wire grooves 11 are arranged at four locations between the wire grooves 11 and wire fitting small holes 12 of a required depth are provided near the wire grooves 11 on the front surface, and the holding member 10 is arranged for each wire groove 11. A rounded elastic part that is longer than the above and has a small diameter so that the half circumference part is inserted into the groove, and whose tip part is bent into a U-shaped part 13 that fits into the small hole 12, and from which a part of the rear part curves slightly outward. 14
The linear electrodes 15 formed in the U-shaped portions 13
is fitted into the corresponding small hole 12, the elastic part 14 is lifted from the wire groove 11, and the rear end is inserted into the holding member 10.
A fixing collar 16 is fitted to the rear base of the holding member 10 to arrange and fix each linear electrode 15 on the peripheral side of the holding member 10, and a cord 17 is attached to the rear end of each electrode 15. Solder 18 and insert the outer periphery of the rear part of the holding member 10 other than the required front exposure range with an insulating gripping part 19 made of resin molding. A plug body a is formed by covering the electrode part, attaching a shield cylindrical metal 21 having a key part 20 for fitting and positioning on a part in the longitudinal direction, and soldering a cord shield 22 to the plug body a; In the center of the side,
A fitting hole 24 of a size suitable for fitting the exposed portion of the holding member 10 of the plug body a is provided, and a linear electrode 1 is provided on the inner circumferential wall of the hole at a location facing the plug-side electrode.
A corresponding number of notched grooves 25 suitable for insertion of the elastic portions 14 of No. 5, and a pair of wire-fitting small holes 26 near the sides thereof.
A wire terminal 27 is placed in the inner part of each groove 25 to be in contact with the plug electrode, and the tip thereof is bent into a U-shaped part 28, which is fitted into the small hole 26. This structure is related to a combination with a socket body b in which the legs are fitted outward and arranged in a fixed manner, and in the case of a plug body a with a shield cylindrical metal 21, the metal 21 part and the key part 20 are fitted. Fitting groove 29 to match
and a key 30.

Note that it is appropriate to use thin wire bodies such as phosphor bronze wire for the wire electrode 15 of the plug body a' and the wire terminal 27 of the socket body b, but it is preferable to use a plate body instead of the wire body. Can be done.

In the case of this plate, the groove shape of the holder into which it is fitted along is not a semicircular shape but a recessed angle shape.

Also, as shown in other embodiments of the plug body a in FIGS. 6 to 9, the electrode holding member 10 may be of various polygonal shapes (see FIGS. 7 and 8) instead of the basic cylindrical shape.
Alternatively, if it is designed in a semicircular shape (see Figure 9) or other suitable cloud shape, and the required number of linear electrodes are arranged at the required circumferential locations depending on the shape, a positioning key can be attached. In this case, the fitting hole 24 on the socket side naturally becomes a corresponding hole type.

Further, a part of the linear terminal 27 on the socket side may be rounded.

Since the present invention is configured as described above, each linear electrode 15 of the plug body a has a front part of the rounded elastic part 14 extending from the wire groove 11 with respect to the longitudinal circumferential side of the electrode holding member 10, and a rear part of the rounded elastic part 14 extending from the wire groove 11. The base part is inserted into the insulating grip part 19 and arranged in a groove-fitting manner, so that the plug body a can be inserted into the key part 2.
0 and the keyway 30, and align the shield cylindrical metal 21 on the plug side and the exposed portion of the holding member 10,
Corresponding fitting grooves 29 and fitting holes 24 on the socket side, respectively.
When the holding member 10 is inserted and fitted into the fitting hole 2, the holding member 10 fits into the fitting hole 2.
4, the elastic portions 14 of each linear electrode 15 are inserted into notched grooves 25 formed at positions corresponding to the electrodes on the peripheral wall of the hole.
A reliable spring contact is made with the linear terminals 27 disposed in each groove.

In this case, when the elastic part 14 of the electrode 15 is pressed by the contact pressure against the linear terminal 27, the U-shaped part 13 at the tip of the electrode 15 absorbs the pressing force, and the elastic part 14 expands and contracts there. 14 forms a straight line with respect to the wire groove 11, and returns to an arm shape when the plug side is removed. However, as a result of the configuration in which the electrodes are arranged along the peripheral side of the holding member 10, the holding member 1
Since the electrode 15 supports the entire length of the electrode, even if the electrode 15 is an extremely thin body such as a wire or a thin plate, unlike the free-standing type, the contact pressure against the terminal does not have the same negative effect as in the past. Wire rods can also be used.

Then, the fitting of the plug body a is performed using the metal 21.
Complete fitting into the fitting groove 29 of the holding member 1
0 complete fitting design is perfect.

In addition, on the socket side, by arranging the linear terminals 27 on the inner periphery of the fitting hole 24 with their tips bent and fitted, the overall structure of the socket is simplified and the terminals are Installation work is simple and efficient, and it is convenient. Parallel pressure welding between wires simplifies each part such as electrodes and terminals, simplifies installation, and allows smooth mating and unmating of connectors. Reasonable, reliable and stable contact can be ensured.

In addition, the use of the linear electrode 15 and the linear terminal 27 and their arrangement on the circumferential side of the holding member 10 and the inner circumference of the hole allows the holding member 10 and the fitting hole to be made smaller, so that the entire connector is In addition to being advantageous in miniaturization, the linear bodies do not take up much space, so they can be arranged with narrow intervals.
It is convenient to increase the number of electrodes, and we can provide small products with a large number of electrodes.Also, reliable contact with the panel wire body is guaranteed, and the conventional round electrode rod can be inserted into the insulating wall inside the metal. There is no hassle, and only manual work is required to arrange the electrodes around the holding member 10, which not only simplifies parts and saves processing costs and materials, but also eliminates the need for advanced manufacturing techniques. It is very easy to make and has good efficiency, so the production cost is low and it is economical. Even if there is a slight difference between the electrode and the corresponding terminal, it is possible to form the rounded part of the wire body. It has the advantage of being convenient because it can be covered by

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1-
Figure 4 shows the basic type, Figure 1 is an enlarged front view of the plug body, Figure 2 is a sectional view taken along line AB of the same as above, Figure 3 is an enlarged front view of the socket body, and Figure 4 is the CD of the same as above.
5 is a sectional view of the fitting side, FIGS. 6 to 9 are views of other examples, FIG. 6 is an enlarged side view of the plug body, FIG. 7 is a front view of the same, and FIG. 8 is a sectional view of the plug body. Figures 9 and 9 are enlarged front views of other examples of the plug body, and Figure 10-1.
Figure 3 shows the conventional product, Figure 10 is a front view of the plug body, Figure 11 is a sectional view taken along the EF line as above, Figure 12 is a front view of the socket body, and Figure 13 is a sectional view taken along the GH line as above. be. a...Plug body, b...Socket body, 10
... Electrode holding member, 11 ... Wire groove, 12 ... Wire fitting small hole, 13, 28 ... U-shaped part, 14 ... R elastic part, 15 ... Linear electrode, 24 ... Fitting hole, 25
... Notch groove, 26 ... Wire fitting small hole, 27 ... Wire terminal.

Claims (1)

[Scope of utility model registration request] In a round connector, a required number of linear electrodes 15 each having a rounded elastic portion 14 formed in the front part are attached to the longitudinal circumferential side of an electrode holding member 10 having a required length and diameter. a plug body a which is bent and fitted to the front part of the member 10, and in which the elastic parts 14 are arranged in grooves at intervals in a floating manner;
In accordance with this, wire terminals that are in contact with the plug-side electrodes are fitted into the inner circumferential wall of the fitting hole 24 suitable for fitting the member 10 on the plug side, with their tips bent and fitted. A small connector that is combined with a socket body b in which the parts are fitted outward and arranged.