JPH0770341B2 - Interface connector - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interface connector, and more particularly to an interface connector with a coaxial circuit changeover switch.

(Prior Art) A conventional integrated connector for connecting a coaxial circuit and a signal circuit is electrically switched by additionally connecting an electromagnetic relay when switching the coaxial circuit at the same time as connecting the signal circuit. I'm trying to do.

The configuration will be described below with reference to the drawings.

FIG. 3 is a diagram for explaining such a conventional interface connector having a coaxial circuit switching function, FIG. 3 (a) is an explanatory diagram of a state before the connectors are coupled, and FIG. 3 (b) is a diagram of the connector. It is an explanatory view of a combined state. In the figure, 1 is the plug part of the connector, 2 is the jack part of the connector,
Reference numeral 3 is an electromagnetic relay for switching the coaxial circuit. Also, c
-C 'is a coaxial circuit, d-d' is a ground connection circuit for the coaxial circuit c-c ', e-e' is a coil energizing circuit of the electromagnetic relay 3, and g-g 'is a signal circuit.

Next, the operation of this interface connector will be described.

First, as shown in FIG. 3 (a), when the plug portion 1 and the jack portion 2 of the connector are not coupled, the signal circuit gg 'is open and the coaxial circuit cc' is also opened. The circuit is open and the coil energizing circuit of the electromagnetic relay 3 e-
Since e'is also open, the electromagnetic relay 3 is deenergized.

Next, as shown in FIG. 3B, when the plug portion 1 and the jack portion 2 of the coil are coupled, the signal circuit g-g '
Is closed and the coaxial circuit cc 'is closed, and the coil energizing circuit e-e' of the electromagnetic relay 3 is also formed, so that the electromagnetic relay 3 is energized to switch the coaxial circuit, that is, the coaxial circuit. The connections of the circuits ac are made. The coaxial circuit c
Simultaneously with the closing of -c ', a ground connection circuit d-d' for this coaxial circuit c-c 'is also formed.

(Problems to be Solved by the Invention) However, according to the above interface connector, it is necessary to attach an electromagnetic relay, which increases the number of parts and complicates the wiring, resulting in cost increase and size reduction. Had become a factor that hindered. Further, there is a problem that an electromagnetic relay drive power source is required, and the electric load on the device side increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide an interface connector having a coaxial circuit switching function capable of eliminating the above-mentioned problems, reducing the number of point components, simplifying the wiring, and reducing the electrical load on the device side.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention comprises a plug portion and a jack portion, and a signal circuit connecting terminal and a coaxial circuit connecting terminal are provided respectively in them. In the interface connector, a bar-shaped contact member (19) protruding from the plug portion (11) and serving as a coaxial circuit connection terminal,
A shield contact (18) which is connected to a shield circuit grounded to shield the coaxial circuit and which is projected from the plug portion (11) so as to surround the rod-shaped contact member (19); Contact pieces (14, 15, and 15), which serve as terminals for signal circuit connection, provided on both sides or one side of the plug section (11).
23, 24), a trough-shaped fixed contactor (22) having a U-shaped cross section, which is built in the jack portion (12), and this trough so that the trough-shaped fixed contactor (22) is covered. Fixed contacts (22)
A strip-shaped movable contact (2
The mechanical changeover switch (13) consisting of 1) and the jack circuit (12) are connected to a shield circuit grounded to shield the coaxial circuit and surround the mechanical changeover switch (13). And a shield contactor (20) built in, and a contactor (16, 17 ,, which is a terminal for signal circuit connection provided on both sides or one side of the jack part (12).
25, 26), the plug portion (11) is fitted into the jack portion (12), and the contact piece (1) of the plug portion (11) is provided.
4,15,23,24) is brought into contact with a contact (16,17,25,26) serving as a signal circuit connecting terminal of the jack portion (12) to close the signal circuit and the rod-shaped contact member. The movable contactor (21) is slidably contacted with the movable contactor (21) of the mechanical changeover switch (13), the movable contactor (21) is separated from the trough-shaped fixed contactor (22), and the movable contactor is moved. (21) and the rod-shaped contact member (19) are connected to each other so as to switch and connect the coaxial circuits.

(Operation) As shown in FIGS. 1 and 2, when the plug portion 11 and the jack portion 12 are coupled, the signal circuits r-r 'and s-s' are opened and the coaxial circuit n-p is opened. Is also closed. That is,
When the contact pieces 14 and 15 provided in the plug portion 11 abut against the contacts 16 and 17 of the jack portion 12, the signal circuit r
-R 'is closed. Further, the contact pieces 23 and 24 provided on the plug portion 11 abut against the electrodes 25 and 26 of the jack portion 12 to close the signal circuit s-s'.

On the other hand, normally, the strip-shaped movable contactor 21 of the mechanical changeover switch and the gutter-shaped fixed contactor 22 are in contact with each other at two points, and the coaxial circuit on is closed.

When the plug portion 11 and the jack portion 12 are fitted to each other, the rod-shaped contact member 19 causes the strip-shaped movable contact 21 of the mechanical changeover switch 21.
Is separated from the trough-shaped fixed contact 22 to open the coaxial circuit on, and the rod-shaped contact member 19 contacts the movable contact 21 to switch the coaxial circuit to form a new coaxial circuit n-p.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration explanatory view of an interface connector according to the present invention, FIG. 1 (a) is an explanatory view of a state before the connector is connected, and FIG. 1 (b) is an explanatory view of a connected state of the connector. 2 is an external perspective view of the interface connector.

First, the structure of this connector will be described.

The interface connector of the present invention comprises a plug part and a jack part. In FIGS. 1 and 2, 11 is a plug part, r is a signal circuit, 14 and 15 are contact pieces for connecting the signal circuit r to the apparatus side, p is a coaxial circuit, and 19 is this coaxial circuit. A rod-shaped contact member for switching and connecting p to the device side, E is a grounded shield electrode for shielding the coaxial circuit p, 18 is a shield contactor provided at the tip of this electrode E, s is a signal circuit, 23 and 24 are the signal circuit S
Is a contact piece for connecting to the device side.

On the other hand, 12 is a jack part, r'is a signal circuit, 16, 17
Is a contact for connecting the signal circuit r'to the contact pieces 14 and 15 of the signal circuit r, no is a coaxial circuit, 13 is a mechanical changeover switch built in the central tip of the jack, E ′
Is a grounded shield electrode for shielding the coaxial circuit n-o, 20 is a shield contact provided at the tip of the electrode E ', 21 is a strip-shaped movable contact constituting the mechanical changeover switch 13, 22 is a gutter-shaped fixed contactor having a U-shaped cross section,
s'is a signal circuit, and 25 and 26 are contacts for connecting the signal circuit s'to the contact pieces 23 and 24 of the signal circuit s.

Therefore, as shown in FIG. 2, the plug part 11 is manufactured by resin molding, for example, by implanting electrodes for forming the signal circuits r and s and electrodes for forming the coaxial circuit p. .

On the other hand, the jack portion 12 is also manufactured by resin molding in which each electrode is implanted so as to form a signal circuit and a coaxial circuit by receiving the electrode of the plug portion. That is, the contact pieces 14 and 15 for forming the signal circuit r and the contact pieces 23 and 24 for forming the signal circuit s are provided on both sides of the plug portion 11 and the jack portion 12 respectively.
Are provided so as to face each contactor. Further, a rod-shaped contact member 19 forming a coaxial circuit p is formed at the center of the plug portion 11.
And a shield electrode E which is grounded so as to surround the rod-shaped contact member 19. The rod-shaped contact member 19 and the shield contact 18 at the tip of the shield electrode E that are grounded are the movable contact 21 of the mechanical changeover switch provided in the jack 12 and the tip of the shield electrode E'which surrounds it. Of the grounded shield contacts 20 of FIG.

Next, the operation of this interface connector will be described.

As shown in FIGS. 1A and 2, the plug portion 11
From the state where the jack part 12 and the jack part 12 are separated, FIG. 1 (b)
As shown in FIG. 3, the signal circuits r and r'where the plug portion 11 and the jack portion 12 are fitted to each other are connected. That is, the contact pieces 14 and 15 make abutting contact with the contacts 16 and 17, respectively. Further, the signal circuits s and s'are similarly connected. That is, the contact pieces 23 and 24 make abutting contact with the contacts 25 and 26, respectively. Instead of this abutting contact, sliding contact using male and female contactors may be used.

Further, the coaxial circuit np and the shield circuit E-E 'are connected. That is, when the plug portion 11 and the jack portion 12 are separated from each other, the mechanical changeover switch 13 closes the gutter-shaped fixed contact 22 and the strip-shaped movable contact 21, and the coaxial circuit n
However, when the plug portion 11 and the jack portion 12 are fitted to each other, the gutter-shaped contact member 19 projecting from the plug portion 11 enters to make sliding contact with the movable contact 21. Then, the contact between the trough-shaped fixed contact 22 and the strip-shaped movable contact 21 is released to open the circuit, and the rod-shaped contact member 19 and the strip-shaped movable contact 21 come into contact with each other to switch the coaxial circuit. Form a coaxial circuit n-p. In this case, the shield contactor 18 and the shield contactor 20 are in sliding contact with each other to shield the newly formed coaxial circuit np.

In this way, the switching connection of the coaxial circuit can be performed simultaneously with the connection of the signal circuit. In that case, in the coaxial circuit,
Normally, a strip-shaped movable contactor that makes two-point contact with the opening end surface of the trough-shaped fixed contactor is arranged so as to cover the trough-shaped fixed contactor having a U-shaped cross section. Therefore, since the strip-shaped movable contactor is brought into contact with the highly rigid trough-shaped fixed contactor so as to cover the opening thereof, the connection can be made surely and stably. Therefore, the coaxial circuit is not opened unintentionally due to vibration or the like.

As described above, the strip-shaped movable contact 21 and the gutter-shaped fixed contact 22 of the mechanical changeover switch are always in contact with each other at two points,
The coaxial circuits o-n are closed.

When the plug portion 11 and the jack portion 12 are fitted to each other, the rod-shaped contact member 19 causes the strip-shaped movable contact 21 of the mechanical changeover switch 21.
Is separated from the trough-shaped fixed contact 22 to open the coaxial circuit on, and the rod-shaped contact member 19 contacts the movable contact 21 to switch the coaxial circuit to form a new coaxial circuit n-p.

Further, the strip-shaped movable contactor comes into contact with the highly rigid trough-shaped fixed contactor at two points, so that reliable and stable contact can be performed. Therefore, unintentional opening of the mechanical switch due to vibration or the like can be prevented.

Further, the rod-shaped contact member 19 passes through the trough-shaped fixed contact 22 and the strip-shaped movable contact 21 having a lid on the fixed contact 22. That is, the rod-shaped contact member 19 slides on the central portion of the movable contactor 21, but since the strip-shaped movable contactor 21 contacts the opening end surface of the gutter-shaped fixed contactor 22, the strip-shaped movable member 21 moves. Contact
The movable contact 21 is slid by the rod-shaped contact member 19 so that both sides of the movable contact 21 are contacted.
The contact of 22 is not affected at all, and good contact can be achieved.

FIG. 4 is an explanatory view of a mechanical changeover switch showing a second embodiment of the present invention.

In this embodiment, the rod-shaped contact member 31 provided on the plug portion 11 is laminated so that the conductive portion 32 is provided on one side and the insulating portion 33 is provided on the other side. Then, the conductive portion 32 is slidably contacted with the contactor 34, and the bar-shaped contact member 31 and the contactor are contacted.
The insulating portion 33 is brought into sliding contact with the contactor 35 while electrically connecting the contactor 34, so that the rod-shaped contact member 31 and the contactor 35 are insulated from each other.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made based on the spirit of the present invention.
They are not excluded from the scope of the invention.

(Effects of the Invention) As described in detail above, according to the present invention, an interface connector including a plug portion and a jack portion, each of which is provided with a signal circuit connection terminal and a coaxial circuit connection terminal. In one of the strips, one of the coaxial circuit connecting terminals is a rod-shaped contact member, and the rod-shaped contact member is in two-point contact with a gutter-shaped fixed contact of a mechanical changeover switch provided at the opposite position of the other. Since the signal circuit is closed and the coaxial circuit is switched and connected by slidably contacting the movable contact member, (1) the number of parts can be reduced and the wiring can be simplified.

(2) The electric load on the device side can be reduced.

(3) Since the strip-shaped movable contactor comes into contact with the highly rigid trough-shaped fixed contactor at two points, reliable and stable contact can be performed. Therefore, unintentional opening of the mechanical switch due to vibration or the like can be prevented.

In this way, it is possible to provide an energy-saving type, compact, inexpensive, highly reliable interface connector, and the effect brought by it is remarkable.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of an interface connector according to the present invention, FIG. 2 is an external perspective view of the interface connector, FIG. 3 is an explanatory view of a conventional interface connector, and FIG. 4 is a second embodiment of the present invention. It is explanatory drawing of the mechanical changeover switch which shows an example. 11 …… Plug part, 12 …… Jack part, 13 …… Mechanical changeover switch, 14,15,23,24 …… Contact piece for signal circuit, 16,17,2
5,26 …… Signal circuit contactor, 18,20 …… Shield contactor, 19,31 …… Rod contact member, 21,34,35 …… Movable contactor, 22 …… Fixed contactor, EE ′ …… Shield electrode, r
-R ', s-s' ... Signal circuit, n-o, n-p ... Coaxial circuit.

Claims (1)

[Claims] 1. An interface connector comprising a plug portion and a jack portion, each of which is provided with a signal circuit connecting terminal and a coaxial circuit connecting terminal, wherein: (a) a coaxial circuit is provided so as to project from the plug portion. A rod-shaped contact member that serves as a connection terminal, and (b) a shield contact that is connected to a shield circuit that is grounded to shield the coaxial circuit and that is projected from the plug portion so as to surround the rod-shaped contact member. A child, (c) a contact piece projecting on both sides or one side of the plug section and serving as a terminal for connecting a signal circuit, and (d) a trough-shaped fixing built in the jack section and having a U-shaped cross section A mechanical changeover switch comprising a contactor and a strip-shaped movable contactor which is always in two-point contact with the opening end face of the trough-shaped fixed contactor so as to cover the trough-shaped fixed contactor; Circuit A shield contact that is connected to a grounded shield circuit for shielding and that is built into the jack so as to surround the mechanical changeover switch; and (f) on both sides or one side of the jack. A contactor that serves as a terminal for signal circuit connection provided, and (g) a contact piece that fits the plug portion into a jack portion, and a contact piece of the plug portion that serves as a terminal for signal circuit connection of the jack portion. The rod-shaped contact member is brought into sliding contact with the movable contactor of the mechanical changeover switch to separate the movable contactor from the gutter-shaped fixed contactor, and the movable contactor is closed. An interface connector, characterized in that a coaxial contact switching member is connected to the switch and a coaxial circuit is switched.