JPH03214574A - Connecting mechanism of connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] Regarding the connection mechanism of a connector that connects corresponding signal lines, the purpose of this invention is to improve contact performance by increasing the contact area between plug terminals and jack terminals. A connector connection mechanism consisting of a plug complete body having a plug terminal and a jack complete body having the same number of jack terminals as the plug terminals, the plug terminals constituting the plug complete body having:
A row-red groove along the longitudinal direction is formed on the entire circumference with a length that covers at least the mating area with the jack terminal, and the jack terminal constituting the completed jack has at least an opening for the plug terminal. One end is fixed at multiple locations at approximately equal intervals around the outer surface of a thin pipe-shaped conductor, and the free end facing the central axis of the conductor on the opposite side from the opening converges at a diameter sufficiently smaller than the diameter of the plug terminal. It is constructed with wires arranged as follows.

[Industrial Application Field] The present invention relates to a connector for connecting corresponding signal lines, and particularly to a connector connection mechanism that improves contact performance by increasing the contact area between a plug and a jack.

2. Description of the Related Art In various recent electronic devices, for example, circuits such as ICs that operate with minute currents, and circuits that require large currents such as heaters and electrostatic chucks are sometimes incorporated into the same device.

When connecting or disconnecting such circuits, for example, it is desirable for microcurrent connectors to have good contact, but when a unit that requires a large current is used in a small space, it is desirable to have a small connector. Since different connectors are used depending on each purpose, such as the desired product, no improvement in productivity can be expected, and there is a need for the development of a compact connector connection mechanism that can withstand large currents and has good contact properties.

[Conventional technology]

FIG. 3 is a diagram showing an example of the configuration of a conventional connector, and shows a bait that is often used when the current is small.

FIG. 4, which shows another configuration example, shows an example of a connector that is often used in areas where the current is large.

In FIG. 3, reference numeral 1 indicates a plug terminal made of, for example, a copper (Cu) alloy, the surface of which is plated with gold (Au) or the like to ensure contact.

The jack terminal 2 is formed by, for example, bending a band-shaped phosphor bronze plate with spring properties inwardly so that both ends thereof face each other near the top of the curved part, and then coating the surface with gold (Au).
The jack terminal 2 is plated, etc.
The distance C between the opposing portions 2a near both ends of the plug terminal 1 is
is smaller than the diameter d.

Note that 3 in the figure is an insulator that holds and fixes the jack terminal 2 and also secures a predetermined distance C between the opposing portions 2a.

Then, when the plug terminal 1 located corresponding to the jack terminal 2 is inserted into the jack terminal 2 from its arcuate tip 1a as shown by the arrow ←, the plug terminal 1 connects the opposing portion 2a of the jack terminal 2 to its The connection between the plug terminal 1 and the jack terminal 2 can be realized by pushing it open against the spring property.

In this case, the contact between the plug terminal 1 and the jack terminal 2 is as shown in the cross-sectional view (3-1) of the plug terminal 1, as shown in pr.
Two-point contact or the contact point of pz! )I. I) There is a contact between two lines passing through Z and extending in the thickness direction of the paper.

In FIG. 4, reference numeral 1 indicates the plug terminal described in FIG. After drilling a hole 4a with a diameter approximately equal to the diameter of the terminal 1 and a predetermined depth, a plurality of (two in the figure) slits 4b are formed at equal intervals along the longitudinal direction on the wall of the hole. The surface thereof and the inner surface of the hole 4a are plated with gold (Au) as shown in FIG.

Normally, after the slot 4b is formed, the opening diameter of the hole 4a is made smaller than the outer diameter of the plug terminal 1 by pressing the forming side end of the slot 4b from the outer circumferential direction.

Further, numeral 5 in the figure is an insulator for holding and fixing the jack terminal 4.

Then, when the plug terminal 1 located corresponding to the jack terminal 4 is inserted into the hole 4a of the jack terminal 4 from its arcuate tip 1a as shown in FIG. The plug terminal 1 and the jack terminal 4 are inserted while pushing the wall portion 4c open against its springiness, and as a result, the plug terminal 1 and the jack terminal 4 come into contact with the inner surface of the hole 4a.
A connection between the two can be realized.

In this case, the contact area between the plug terminal 1 and the jack terminal 4 is the peripheral surface of the plug terminal 1 as shown in (4-1) in the cross-sectional view of the plug terminal 1, so it is reliable even in areas where the current is large. connection can be achieved.

However, the wall portion 4c described above has an integral arc shape.

Therefore, minute shavings S, etc. generated by friction between the plug terminal and the jack terminal when the plug terminal is inserted may adhere to the inner surface of the hole 4a or the surface of the plug terminal 1, and burrs 52, etc. may occur when processing the slot 4b. When this occurs, surface contact becomes partial contact as shown in 4-2, which may induce heat generation due to an increase in contact resistance.

[Problem to be solved by the invention]

Connectors with conventional configurations have the problem that connectors with leaf spring feder-like contact pieces have a small contact area, making it difficult to use in areas with large currents. In the case of a connector with an increased size, there is a problem in that if minute foreign matter or the like adheres to the contact portion or force heli occurs during slitting, the contact area decreases and heat generation due to increased contact resistance is induced.

[Means to solve the problem]

The above problem lies in the connection mechanism of a connector consisting of a complete plug body having a plurality of plug terminals and a complete jack body having the same number of jack terminals as the plug terminals. , a row-shaped groove along the longitudinal direction is formed on the entire circumference with a length that covers at least the mating area with the jack terminal, and the jack terminal constituting the completed jack has at least an opening for the plug terminal. One end is fixed at multiple locations at approximately equal intervals around the outer surface of a thin pipe-shaped conductor, and the free end facing the central axis of the conductor on the opposite side from the opening converges at a diameter sufficiently smaller than the diameter of the plug terminal. The problem is solved by a connector connection mechanism that is provided with wires arranged in such a way.

[For production]

If the part that contacts the plug terminal on the jack terminal side is made up of multiple wires with free ends without being integrated, it is possible to eliminate the influence of foreign objects or minute protrusions on the contact part, and it is possible to always have multiple contact points. can be secured.

In the present invention, a plurality of wires are attached to a cylindrical body into which a plug terminal is inserted in a direction toward the central axis of the cylindrical body, and when the plug terminal is inserted, the free end side of the plurality of wires is connected to the plug. The jack terminal is configured to make contact with the terminal surface.

Therefore, it is possible to increase the contact area between the jack terminal and the plug terminal in a stable manner at all times, and it is possible to obtain a connector connection mechanism with improved contact performance.

〔Example〕

FIG. 1 is a principle diagram illustrating the connection mechanism of the present invention, and FIG. 2 is a diagram showing an example of the implementation configuration of the connector according to the present invention.

In Figure 1, a plug terminal 1 whose surface is plated with gold (Au)
0, parallel knurled grooves 10a are provided at approximately equal intervals along the longitudinal direction.

Note that the pitch of the knurled grooves 10a in this case is 0.2
The opening is about ~0.3.

Further, the jack terminal 11 has a diameter D of the plug terminal 10.
Thickness t is 0.3 mm and width W has a slightly larger inner diameter.
A conductor 12 in the shape of a vibrator with a diameter of about 3 mm, and a plurality of conductors each having a diameter of about 0.2neat and a length of about 0.2neat, one end of which is fixed at approximately equal intervals around the outer surface of the conductor 12 by means such as welding. The wire 13 is made of gold (Au) plated phosphor bronze wire having a spring property of 1, and in particular, the other free end side of each wire 13 has a diameter D of about 100 mm compared to the diameter D of the plug terminal 10. It is bent in the direction of the central axis of the conductor 12 near the portion where it is fixed to the conductor 12 so as to converge to a small diameter D1.

In the jack terminal 11 having such a configuration, the plug terminal 1 is arranged at a position corresponding to the jack terminal 11.
0 is inserted from the tip 10b side, each wire 13 is pushed by the surface of the plug terminal 10 and deformed to open outward from the time it comes into contact with the tip 10b of the plug terminal 10. The groove 10a provided in the plug terminal 10
When the plug terminal 10 is inserted to the position where it contacts each wire 13, each wire 13 is inserted into the groove 10 from that point on.
It moves in the groove 10a in a state where it falls into one of the grooves 10a.

This means that when the plug terminal 10 and jack terminal 11 are fitted in a predetermined position, each wire 13 corresponds to one of the grooves 10a of the plug terminal 10, and the conductor 1
2 is close to the diameter D of the plug terminal 10 as described above, each wire 13 is provided with the groove 10a over almost its entire length.
It means coming into contact with.

Therefore, even if a foreign object or the like is attached to the surface of the plug terminal 10 or there is a small protrusion in a part, the other wires 13 other than the part are in contact with the groove 10aj, so that the plug terminal 10 and the jack are in contact with each other. A reliable connection with the terminal 11 can be ensured.

Note that when the plug terminal 10 is removed from the jack terminal 1l, each wire 13 slides in the groove 10a, so that each wire 13 does not become entangled or bent with an adjacent wire.

In FIG. 2 showing an example of an implementation configuration, a completed jack body 15 is formed to have a plurality of jack terminals 11 explained in FIG. A pipe-shaped jack terminal holder 16,
and the jack terminal holder 16 is attached to the jack terminal 1.
1 and a jack insulator 17 that is held and fixed in a predetermined position.

Reference numeral 18 in the figure is an external connection terminal that passes through the jack insulator 17 and is connected to the jack terminal holder 16 and eventually to the jack terminal 11.

Therefore, at a predetermined position of the jack insulator 17, a jack terminal holder l6 connected to the jack terminal l1 is placed on the conductor 1.
If the jack is installed so that the opening of No. 2 faces outward, in other words, the wire No. 3 faces toward the back, a completed jack 15 as shown in the figure can be obtained.

On the other hand, the plug complete body 20 has a plurality of plug terminals 21 in which knurled grooves 21a are formed at approximately equal intervals along the longitudinal direction of the periphery, as in FIG. 1, and the jack terminal 11.
and a plug insulator 22 provided with a through hole 22a at a position corresponding to the arrangement position, and the plug terminal 21 includes a stepped surface 21c provided on the other end side with respect to the tip end 2lb of the plug terminal 21, and The plug is held and fixed at a predetermined position on the plug insulator 22 by an E ring 23 that fits into a groove 21d provided on the shaft that fits into the through hole 22a.

Note that 24 in the figure is an external connection terminal connected to the plug terminal 2l.

Further, the completed jack body 15 and the completed plug body 20 can be connected by fitting the inner surface 22b of the peripheral wall of the plug insulator 22 to the outer surface 17a of the peripheral wall of the jack insulator 17, which has a height exceeding at least the plug terminal 21. It is possible to determine the relative position of the

Therefore, the shaft of the plug terminal 21 on the stepped surface 21c side is inserted into the through hole 22a of the plug insulator 22 described above.
2, and fit the E-ring 23 into the groove 21a exposed on the outside to form the completed plug 2 as shown in the figure.
After obtaining 0, when the inner surface 22b of the plug insulator 22 is fitted to the outer surface 17a of the jack insulator 17 and the two are brought close together as shown by arrow A, each corresponds to the other as explained in FIG. The jack terminal 11 and the plug terminal 21 can be connected.

Especially in this case, the jack terminal 11 and the plug terminal 21
Since the wire 13 that electrically connects the two is made of a thin wire, there is no generation of foreign matter due to abrasion during contact, and the contact area between the two can be increased, so the range of application is wide regardless of the magnitude of the current. In addition, a compact connector with good contact properties can be easily obtained.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to provide a connector connection mechanism that improves contact performance by increasing the contact area between the plug and the jack.

[Brief explanation of drawings]

FIG. 1 is a principle diagram explaining the connection mechanism of the present invention, FIG. 2 is a diagram showing an example of the implementation configuration of the connector according to the present invention, FIG. 3 is a diagram showing an example of the configuration of a conventional connector, and FIG. FIG. 7 is a diagram showing another configuration example. In the figure, 10.21 is a plug terminal, 10a, 21a are knurled grooves, 10b, 2lb are tips, l1 is a jack terminal, 1
2 is a conductor, 13 is a wire, 15 is a completed jack, 16 is a jack terminal holder, 17 is a jack insulator, 17a is an outer surface, 18.24
20 is an external connection terminal, 20 is a completed plug, 21c is a stepped surface, 21d is a groove, 22 is a plug insulator, 22
a represents a through hole, 22b represents an inner surface, and 23 represents an E ring. (5-1) Example of construction of Junto connector

Claims (1)

[Scope of Claims] A connector connection mechanism consisting of a plug complete body having a plurality of plug terminals and a jack complete body having the same number of jack terminals as the plug terminals, the plug terminals ( 10) has a knurled groove (10a) along the longitudinal direction formed on the entire circumference with a length that covers at least the fitting area with the jack terminal, and the jack terminal (11) constituting the completed jack body. for,
A thin pipe-shaped conductor (12) that serves as an opening for at least the plug terminal (10) has one end fixed to a plurality of approximately equally spaced locations around the outer surface of the conductor (12), and a free end facing the central axis of the conductor on the opposite side from the opening. A connector connection mechanism characterized in that the wires (13) are arranged so that the wires converge at a diameter sufficiently smaller than the diameter of the plug terminal (10).